Conditional Sentences Practice Test — Basic

All 45 questions with answers

Pick an answer for each question to see if you are right, with the explanation. Submit when you are done; you can submit before answering them all.

1. Q1If you ___ ice, it melts.

   Aheated Bare heating Cwill heat Dheat

   Answer: D. heat

   This describes a scientific fact that is always true. We use the simple present tense for facts. Example: 'If you touch fire, it burns.'

2. Q2If you ___ plants, they die.

   Adon't water Bwon't water Cwouldn't water Ddidn't water

   Answer: A. don't water

   This is a general truth or a rule of nature. Use the simple present tense in both parts of the sentence. 'don't water' is the correct present form here.

3. Q3The light ___ on if you press this button.

   Aturned Bturning Cturns Dwill turning

   Answer: C. turns

   This explains how a machine works—a fact. When the subject is 'The light' (it), we use the simple present verb 'turns.' Words like 'turning' or 'turned' do not fit this factual statement.

4. Q4If the sun ___ down, it gets dark.

   Ais going Bgoes Cwill go Dwent

   Answer: B. goes

   This is a natural law. For things that always happen, use the simple present. For 'the sun' (it), we use 'goes.' Avoid 'will go' because we are describing a universal truth, not a future plan.

5. Q5If I ___ tired, I go to bed early.

   Aam Bwill be Cwas Dwere

   Answer: A. am

   This describes a habit or a regular situation. Use the simple present 'am' in the 'if' part. 'was' and 'were' are for the past or imaginary situations, which does not fit a regular habit.

6. Q6Choose the correct sentence:

   AIf you adding sugar, it tastes sweet. BIf you add sugar, it tastes sweet. CIf you added sugar, it will taste sweet. DIf you will add sugar, it tastes sweet.

   Answer: B. If you add sugar, it tastes sweet.

   When talking about facts that are always true, use the simple present in both parts: 'If you add sugar' (present) + 'it tastes sweet' (present). We don't use 'will' or 'adding' in this type of sentence.

7. Q7Choose the correct sentence:

   AIf you will drop a glass, it breaks. BIf you dropped a glass, it will break. CIf you drop a glass, it broke. DIf you drop a glass, it breaks.

   Answer: D. If you drop a glass, it breaks.

   This is a general truth. Both verbs should be in the simple present: 'drop' and 'breaks.' Avoid 'will drop' or 'broke' because we are describing what happens every time you drop a glass.

8. Q8What happens if you ___ water to 100 degrees?

   Aare heating Bheat Cwill heat Dheated

   Answer: B. heat

   For scientific facts, use the simple present after 'if.' Since the subject is 'you,' use the verb 'heat.' We don't use 'will heat' in the 'if' part of the sentence.

9. Q9Choose the correct sentence:

   AIf you don't eat, you feel hungry. BIf you won't eat, you feel hungry. CIf you don't eat, you felt hungry. DIf you wouldn't eat, you feel hungry.

   Answer: A. If you don't eat, you feel hungry.

   This is a physical fact. Use the simple present for both parts. 'don't eat' and 'feel' are both simple present forms. 'won't eat' or 'wouldn't eat' are incorrect for general truths.

10. Q10Choose the correct sentence:

    AIf it will rain, the grass will get wet. BIf it will rain, the grass gets wet. CIf it rains, the grass got wet. DIf it rains, the grass gets wet.

    Answer: D. If it rains, the grass gets wet.

    This is a natural event that is always true. Use the simple present in both parts: 'rains' and 'gets.' Do not use 'will rain' or 'will get' for universal facts.

11. Q11Choose the correct sentence:

    AIf you heated water, it boils. BIf you will heat water, it will boil. CIf you heat water, it boils. DIf you heat water, it will boils

    Answer: C. If you heat water, it boils.

    For things that always happen, use the simple present in both parts. Avoid using 'will' in the 'if' part or mixing past and present like 'heated' and 'boils.'

12. Q12Choose the correct sentence:

    AIf you mix oil and water, they didn't mix. BIf you mixed oil and water, they don't mix. CIf you mix oil and water, they not mixing. DIf you mix oil and water, they don't mix.

    Answer: D. If you mix oil and water, they don't mix.

    This is a scientific fact. For the plural subject 'they,' we use the simple present negative 'don't mix.' 'not mixing' and 'didn't mix' are grammatically incorrect in this context.

13. Q13Choose the correct sentence:

    AIf you touch fire, you will burning yourself BIf you touch fire, you burn yourself. CIf you touched fire, you burn yourself. DIf you touch fire, you are burning yourself.

    Answer: B. If you touch fire, you burn yourself.

    This is a general fact of life. Use the simple present in both parts: 'touch' and 'burn.' 'touched' is for the past, and 'will burning' is not a correct verb form.

14. Q14Choose the correct sentence:

    AIf you freeze water, it becomes ice. BIf you freeze water, it will becoming ice CIf you froze water, it becomes ice. DIf you will freeze water, it becomes ice.

    Answer: A. If you freeze water, it becomes ice.

    This is a science fact. For the subject 'you,' use the simple present verb 'freeze.' For 'it,' use 'becomes.' Avoid 'will freeze' or 'froze' here.

15. Q15Choose the correct sentence:

    AIf you press this key, the computer will starting BIf you will press this key, the computer starts. CIf you pressed this key, the computer starts. DIf you press this key, the computer starts.

    Answer: D. If you press this key, the computer starts.

    This is a factual instruction. Use the simple present for both parts: 'press' and 'starts.' Avoid 'will press' or 'pressed' when describing a consistent result.

16. Q16If I ___ time tomorrow, I will help you.

    Ahad Bhave Cwill have Dwould have

    Answer: B. have

    This is a future possibility. In the 'if' part, use the simple present ('have'), even though we are talking about tomorrow. The other part uses 'will' ('will help'). Never use 'will' or 'would' directly after 'if' in this type of sentence.

17. Q17If it ___ tomorrow, we will stay home.

    Awill rain Brain Crains Drained

    Answer: C. rains

    To talk about a future possibility, use the simple present after 'if.' For the subject 'it,' we use 'rains.' We don't say 'if it will rain' when talking about future conditions like this.

18. Q18If she ___ hard, she will pass the test.

    Astudied Bwill study Cstudy Dstudies

    Answer: D. studies

    This is about a possible future result. After 'if,' use the simple present. For 'she,' we add '-es' to the verb to get 'studies.' Avoid 'will study' in the 'if' part.

19. Q19You ___ late if you don't hurry.

    Aare Bwill be Cwere Dwould be

    Answer: B. will be

    This is a possible future result. Use 'will' + the base verb ('be') for the result part of the sentence. 'would be' is for imaginary situations, not likely future outcomes.

20. Q20If they ___ the train, they will be late.

    Awill miss Bmisses Cmiss Dmissed

    Answer: C. miss

    For a future possibility, use the simple present after 'if.' For the subject 'they,' the correct form is 'miss.' Avoid 'will miss' or the past tense 'missed.'

21. Q21Choose the correct sentence:

    AIf you will study, you pass. BIf you will study, you will pass. CIf you study, you passed. DIf you study, you will pass.

    Answer: D. If you study, you will pass.

    This is a likely future outcome. Use the simple present ('study') after 'if,' and 'will' ('will pass') in the result part. Don't use 'will' in both parts of the sentence.

22. Q22Choose the correct sentence:

    AIf it will be sunny, we will go to the park. BIf it will be sunny, we go to the park. CIf it is sunny, we goes to the park. DIf it is sunny, we will go to the park.

    Answer: D. If it is sunny, we will go to the park.

    For future plans, use the simple present ('is') after 'if' and 'will' ('will go') for the result. Avoid using 'will be sunny' in the 'if' part.

23. Q23Choose the correct sentence:

    AIf he call, I answer. BIf he will call, I answer. CIf he calls, I will answer. DIf he will call, I will answer.

    Answer: C. If he calls, I will answer.

    This is a likely future event. Use the simple present ('calls') after 'if' and 'will' ('will answer') for the result. Do not use 'will' in the 'if' part of the sentence.

24. Q24Choose the correct sentence:

    AIf she finishes her work, she will go home. BIf she finishes her work, she gone home. CIf she will finish her work, she will go home. DIf she will finish her work, she goes home.

    Answer: A. If she finishes her work, she will go home.

    Use the simple present ('finishes') after 'if' for a future condition. The result uses 'will' ('will go'). Avoid putting 'will' in the 'if' part of the sentence.

25. Q25If we leave now, we ___ catch the early bus.

    Awill can Bcan Cwould Dwould can

    Answer: B. can

    In future possibility sentences, you can use 'can' instead of 'will' to show ability. 'If we leave now' (present) + 'we can catch' (ability). 'would' is only for imaginary situations.

26. Q26If you see him, will you ___ him to call me?

    Aasking Bask Casked Dasks

    Answer: B. ask

    After 'will you,' we always use the base form of the verb. 'ask' is the correct form. We do not use 'asking,' 'asked,' or 'asks' after the word 'will.'

27. Q27Choose the correct sentence:

    AIf he arrived, we will start. BIf he arrives, we will start. CIf he will arrive, we start. DIf he arrives, we starting

    Answer: B. If he arrives, we will start.

    For a future event, use the simple present ('arrives') after 'if' and 'will' ('will start') for the result. Never use 'will' in the 'if' part.

28. Q28Choose the correct sentence:

    AIf you will not study, you will fail. BIf you will not study, you fail. CIf you do not study, you failing DIf you do not study, you will fail.

    Answer: D. If you do not study, you will fail.

    This describes a possible future outcome. Use the simple present ('do not study') after 'if' and 'will fail' for the result. Avoid 'will not study' in the 'if' part.

29. Q29Choose the correct sentence:

    AIf it were cold, I will wear a coat BIf it will be cold, I wear a coat. CIf it is cold, I wearing a coat DIf it is cold, I will wear a coat.

    Answer: D. If it is cold, I will wear a coat.

    Use the simple present ('is') after 'if' for a future condition. The result part uses 'will' ('will wear'). Do not use 'were' (imaginary) or 'will be' in the 'if' part.

30. Q30Choose the correct sentence:

    AIf I will see him, I tell him. BIf I see him, I will tell him. CIf I saw him, I will tell him. DIf I see him, I telling him

    Answer: B. If I see him, I will tell him.

    Use the simple present ('see') after 'if' for a future possibility. The result part uses 'will' ('will tell'). Avoid using 'will see' or 'saw' in this context.

31. Q31If I ___ a car, I would drive to work.

    Awill have Bhad Cwould have Dhave

    Answer: B. had

    This is an imaginary situation in the present. Use the past simple ('had') in the 'if' part and 'would' in the result. 'have' or 'will have' are for real possibilities, not imaginary ones.

32. Q32If she ___ more, she would be happier.

    Awill exercise Bexercises Cexercised Dexercise

    Answer: C. exercised

    This is an imaginary situation. Use the past simple ('exercised') after 'if' to show it isn't currently true. We use 'would' in the second part for the imaginary result.

33. Q33If I ___ you, I would take the job.

    Abe Bam Cwere Dwas

    Answer: C. were

    When giving advice or imagining you are someone else, use 'were' after 'if.' We say 'If I were,' 'If he were,' or 'If she were' in these imaginary sentences. 'am' is only for real facts.

34. Q34If they ___ money, they would travel.

    Awill have Bhave Cwould have Dhad

    Answer: D. had

    This is an imaginary (hypothetical) situation. Use the past simple ('had') in the 'if' part and 'would travel' in the second part. 'have' or 'will have' would make it a real possibility instead of an imaginary one.

35. Q35If he ___ the answer, he would tell us.

    Aknow Bknew Cwould know Dknows

    Answer: B. knew

    This is imaginary because he doesn't actually know the answer. Use the past simple ('knew') after 'if.' The result part uses 'would.' Avoid 'knows' or 'would know' in the 'if' part.

36. Q36Choose the correct sentence:

    AIf I win the lottery, I would buy a house. BIf I would win the lottery, I would buy a house. CIf I won the lottery, I buy a house. DIf I won the lottery, I would buy a house.

    Answer: D. If I won the lottery, I would buy a house.

    This is an unlikely or imaginary event. Use the past simple ('won') after 'if' and 'would' + base verb ('would buy') for the result. Do not use 'would' in the 'if' part.

37. Q37Choose the correct sentence:

    AIf I were you, I will apologize. BIf I am you, I would apologize. CIf I was you, I would apologize. DIf I were you, I would apologize.

    Answer: D. If I were you, I would apologize.

    This is advice for an imaginary situation. Use 'were' in the 'if' part and 'would' in the result part. While people sometimes say 'If I was' in casual talk, 'If I were' is the standard choice.

38. Q38Choose the correct sentence:

    AIf she would have time, she would visit. BIf she had time, she will visit. CIf she has time, she would visit. DIf she had time, she would visit.

    Answer: D. If she had time, she would visit.

    This is an imaginary situation. Use the past simple ('had') after 'if' and 'would' for the result. Avoid mixing 'had' with 'will' or using 'has' with 'would.'

39. Q39Choose the correct sentence:

    AIf we had a map, we aren't lost. BIf we had a map, we wouldn't be lost. CIf we would have a map, we wouldn't be lost. DIf we have a map, we wouldn't be lost.

    Answer: B. If we had a map, we wouldn't be lost.

    This is imaginary because the speakers are lost and don't have a map. Use the past simple ('had') after 'if' and 'wouldn't' for the result part. 'have' or 'aren't' would describe a real situation.

40. Q40If I had a map, I ___ find the way.

    Aam Bwill Ccan Dmight

    Answer: D. might

    In imaginary situations, you can use 'might' or 'could' instead of 'would' to show a possibility. Since the first part uses the past tense 'had,' the second part needs 'might.' 'will' or 'can' are for real, likely situations.

41. Q41Choose the correct sentence:

    AIf I had money, I travel. BIf I had money, I would travel. CIf I have money, I would travel. DIf I would have money, I travel.

    Answer: B. If I had money, I would travel.

    For an imaginary situation, use the past simple ('had') after 'if' and 'would' for the result. Never use 'would' in the 'if' part of the sentence.

42. Q42Choose the correct sentence:

    AIf she knew the truth, she would be sad. BIf she knows the truth, she would be sad. CIf she would know the truth, she is sad. DIf she knew the truth, she is sad.

    Answer: A. If she knew the truth, she would be sad.

    This is an imaginary situation. Use the past simple ('knew') after 'if' and 'would' for the result. Avoid using 'would' in the 'if' part or mixing past and present like 'knew' and 'is.'

43. Q43Choose the correct sentence:

    AIf you are here, we would have fun. BIf you were here, we would have fun. CIf you were here, we have fun. DIf you would be here, we have fun.

    Answer: B. If you were here, we would have fun.

    This is imaginary because the person is not here. Use 'were' after 'if' and 'would' for the result. Do not use 'would' in the 'if' part or 'are' in the imaginary result.

44. Q44If you could go anywhere, where ___ you go?

    Adid Bdo Cwould Dwill

    Answer: C. would

    This is a question about an imaginary situation. Since it uses 'could' (past), the other part must use 'would.' 'will,' 'did,' and 'do' are not used for imaginary 'what if' questions.

45. Q45Choose the correct sentence:

    AIf I saw a ghost, I would run. BIf I saw a ghost, I run. CIf I would see a ghost, I run. DIf I see a ghost, I would run.

    Answer: A. If I saw a ghost, I would run.

    This is an imaginary situation. Use the past simple ('saw') after 'if' and 'would' for the result. Never use 'would' in the 'if' part, and don't use 'see' if you are using 'would' in the second part.