This quiz works best with JavaScript enabled. Home > English Grammar > Grammar > Parts Of Speech > Verbs > Auxiliary Verbs > Modal Verbs > Past Modals Of Deduction – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Past Modals Of Deduction Quiz 1 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What do we say when we are certain something is not true? A) May not. B) Must. C) Might not. D) Can't. Show Answer Correct Answer: D) Can't. 2. A. The window was broken.B. The thieves ..... got in through that window. A) Might have. B) Must have. C) Should have. D) None of the above. Show Answer Correct Answer: B) Must have. 3. Fill in the blank:She ..... passed the exam. She looks very happy. A) Must have. B) Could have. C) Might have. D) May have. Show Answer Correct Answer: A) Must have. 4. Sarah ..... so happy when she found out she was being promoted. A) Might have been. B) Shouldn't have been. C) Must have been. D) Can't have been. Show Answer Correct Answer: C) Must have been. 5. Fill in the blank:I'm not sure, but she ..... forgotten about the meeting. A) Might have. B) Should have. C) Could have. D) May have. Show Answer Correct Answer: D) May have. 6. Everybody was wondering who ..... done it.= Everybody was wondering who maybe did it. A) Must have. B) Might have. C) Can't have. D) None of the above. Show Answer Correct Answer: B) Might have. 7. Fill in the blank:She ..... been at the party. I didn't see her there. A) Must have. B) Should have. C) Could have. D) Might have. Show Answer Correct Answer: D) Might have. 8. I ..... some fruit. I have nothing in the fridge. A) Could buy. B) Must buy. C) Mustn't buy. D) Don't have to buy. Show Answer Correct Answer: B) Must buy. 9. Even if I had studied for 1000 hours I ..... that exam! It was too difficult-impossible! A) Mustn't have passed. B) Shouldn't have passed. C) Couldn't have passed. D) None of the above. Show Answer Correct Answer: C) Couldn't have passed. 10. A. He ..... gone to the beach. B. He loves being in the sun. A) Must have. B) Might have. C) May have. D) None of the above. Show Answer Correct Answer: A) Must have. 11. A. Sarah looks very happy!B. She ..... passed her driving test. A) Must have. B) Might have. C) Could have. D) None of the above. Show Answer Correct Answer: A) Must have. 12. The younger son ..... lied.=I'm sure the younger son lied. A) Couln't have. B) Might have. C) Must have. D) None of the above. Show Answer Correct Answer: C) Must have. 13. I ..... about the exams. When I got my results, I realized I had good marks. A) Needn't have worried. B) Shouldn't be worried. C) Had to be worried. D) Needn't worry. Show Answer Correct Answer: A) Needn't have worried. 14. Complete with the correct use of past modals of deduction:Wow! Have you finished all that already? You ..... been hungry! A) Might have. B) Must have. C) Can't have. D) None of the above. Show Answer Correct Answer: B) Must have. 15. I'm not sure if Samantha is still here. She ..... already left the office. A) Must have. B) May have. C) Can't have. D) Couldn't have. Show Answer Correct Answer: B) May have. 16. It's a good thing you wore a helmet. You ..... yourself. A) Must have hurt. B) Could have hurt. C) Can't have hurt. D) Should have hurt. Show Answer Correct Answer: B) Could have hurt. 17. If you can't find your house keys, you ..... them in car. A) Can't have left. B) Must have left. C) Shouldn't have left. D) Would rather have left. Show Answer Correct Answer: B) Must have left. 18. We couldn't understand anybody in Paris. A) We must have learnt some French. B) We should have learnt some French. C) We shouldn't have learnt some French. D) None of the above. Show Answer Correct Answer: B) We should have learnt some French. 19. Fill in the blank:He ..... been late for work. He always arrives on time. A) Has never. B) Has occasionally. C) Has often. D) Has always. Show Answer Correct Answer: A) Has never. 20. Someone stole a watch from the store and they think Steve did it. I was with him inside the store and I saw him walk out very quickly so ..... A) He may have done it. B) He must have done it. C) He couldn't have done it. D) He might not have done it. Show Answer Correct Answer: A) He may have done it. 21. I ..... (hand) in my project yesterday.It was the deadline for everyone. A) Must have handed. B) Had to hand. C) All the above. D) None of the above. Show Answer Correct Answer: B) Had to hand. 22. Complete with the correct use of past modals of deduction:Javier was supposed to be on the 3:00 pm flight to Chicago but he isn't. He ..... A) Can't have. B) Couldn't have. C) Must have. D) None of the above. Show Answer Correct Answer: C) Must have. 23. "Why are you sure that Ann didn't commit the crime?" "She ..... that crime because I was with her" A) May not have committed. B) Shouldn't have committed. C) Couldn't have committed. D) Wasn't supposed to commit. Show Answer Correct Answer: C) Couldn't have committed. 24. Amanda looks very sad-she ..... (fail) her biology test. A) Must have failed. B) Had to fail. C) All the above. D) None of the above. Show Answer Correct Answer: A) Must have failed. 25. It ..... been Mrs McGraw.=I'm sure it was Mrs McGraw. A) Could have. B) Can't have. C) Must have. D) None of the above. Show Answer Correct Answer: C) Must have. 26. You ..... (be) crazy to do such a dangerous thing. A) Had to be. B) Must have been. C) All the above. D) None of the above. Show Answer Correct Answer: B) Must have been. 27. She ..... been able to finish her homework because she had a busy day. A) Might not have. B) Must have. C) Might have. D) Must not have. Show Answer Correct Answer: A) Might not have. 28. She's 20 minutes late. A) She must not have missed the train. B) She must have missed the train. C) She could have missed the train. D) She can't have missed the train. Show Answer Correct Answer: C) She could have missed the train. 29. Quinoa is a simple food that you ..... of. A) Shouldn't have heard. B) Might not hear. C) May not have heard. D) Must not have heard. Show Answer Correct Answer: C) May not have heard. 30. Clara was very upset with you yesterday. You ..... apologised for saying she was lazy. A) Must have. B) Should have. C) Can't have. D) Might have. Show Answer Correct Answer: B) Should have. 31. Fill in the blank:She ..... have won the lottery. She bought a ticket. A) Could. B) Must. C) Might. D) Should. Show Answer Correct Answer: A) Could. 32. Complete with the correct use of past modals of deduction:She ..... cleaned the whole house on her own in two hours. She must have had some help. A) Might have. B) Must have. C) Can't have. D) None of the above. Show Answer Correct Answer: C) Can't have. 33. Julie ..... our meeting yesterday morning because she didn't note it down. A) Might have forgotten. B) May forget. C) Should have forgotten. D) Might forget. Show Answer Correct Answer: A) Might have forgotten. 34. They didn't come to our wedding. Maybe they didn'treceive the invitation. A) They can't have received our invitation. B) They might not have received our invitation. C) They shouldn't have received our invitation. D) None of the above. Show Answer Correct Answer: B) They might not have received our invitation. 35. My bike isn't in the garage. My brother ..... it. A) Must have taken. B) Should have taken. C) All the above. D) None of the above. Show Answer Correct Answer: A) Must have taken. 36. Perhaps John didn't see you. That's why he didn'tsay hello. A) John might not have seen you. B) John can't have seen you. C) John shouldn't have seen you. D) None of the above. Show Answer Correct Answer: A) John might not have seen you. 37. Which means possibly not true? A) Must. B) Couldn't. C) May not. D) Can't. Show Answer Correct Answer: C) May not. 38. A. John ..... been very happy when he found out he was going to be a father. B. He's wanted this for a long time. A) Might have. B) Must have. C) Could have. D) None of the above. Show Answer Correct Answer: B) Must have. 39. Someone stole a watch from the store and they think Steve did it. Steve and I were the only ones in the store and I saw him put something in his pocket when the owner wasn't looking so ..... A) He must not have done it. B) He must have done it. C) He might have done it. D) He couldn't have done it. Show Answer Correct Answer: B) He must have done it. 40. I ..... my parents the truth. Now I'm in trouble. A) Should have told. B) May have told. C) All the above. D) None of the above. Show Answer Correct Answer: A) Should have told. 41. I can't remember my password! I ..... it in my notebook as I always do ..... A) Must have written. B) Should have written. C) Couldn't have written. D) None of the above. Show Answer Correct Answer: B) Should have written. 42. Fill in the blank:They ..... have forgotten about the meeting. It was in their calendar. A) Should. B) Could. C) Must. D) Might. Show Answer Correct Answer: C) Must. 43. The oral interview in French ..... difficult. Few students passed it. A) Can't be. B) Must have been. C) Must be. D) Can't have been. Show Answer Correct Answer: B) Must have been. 44. Fill in the blank:He ..... forgotten his wallet. He always carries it with him. A) Didn't have. B) Hasn't have. C) Must have. D) Mustn't have. Show Answer Correct Answer: C) Must have. 45. As head girl, I ..... (represent) the students of the school on all official occasions. A) Had to represent. B) Must have represented. C) All the above. D) None of the above. Show Answer Correct Answer: A) Had to represent. 46. Bob has chocolate on his face and hands and I saw him throw the chocolate wrapper in the trash. A) He can't have eaten the chocolate. B) He must have eaten the chocolate. C) He could have eaten the chocolate. D) He may have eaten the chocolate. Show Answer Correct Answer: B) He must have eaten the chocolate. 47. A. She ..... misunderstood my directions. B. Why else is she late? A) Mights have. B) Can't have. C) Might have. D) None of the above. Show Answer Correct Answer: C) Might have. 48. He might have ..... a famous singer if he had practiced more. A) Became. B) Becoming. C) Become. D) Becomes. Show Answer Correct Answer: C) Become. 49. "They towed my car away from the executive parking lot yesterday" -'' You ..... here" A) Might not have parked. B) Must not have parked. C) Shouldn't have parked. D) May not have parked. Show Answer Correct Answer: C) Shouldn't have parked. 50. Fill in the blank:He ..... taken the last piece of cake. He's on a diet. A) Can't have. B) Could have. C) Might have. D) Should have. Show Answer Correct Answer: A) Can't have. 51. Someone stole a watch from the store and they think Steve did it. I was with Steve the whole time and he didn't even go into the store so ..... A) He can't have done it. B) He must have done it. C) He might have done it. D) He may not have done it. Show Answer Correct Answer: A) He can't have done it. 52. Choose the correct optionIf I'm 100% sure that something happened in the past A) It may have happened. B) It must have happened. C) It could have happened. D) None of the above. Show Answer Correct Answer: B) It must have happened. 53. A:Peter said you were an architect. B:He ..... confused me with someone else or maybe he misunderstood me. I'm a vet. A) Must have. B) May have. C) All the above. D) None of the above. Show Answer Correct Answer: B) May have. 54. They ..... (get) married-look at the ring she's wearing ! A) Had to get. B) Must have got. C) All the above. D) None of the above. Show Answer Correct Answer: B) Must have got. 55. We use ..... when something is certainly true (100%). A) Must. B) May/might/can/could. C) Can't / couldn't. D) None of the above. Show Answer Correct Answer: A) Must. 56. She didn't join the training session this morning. Probably she just forgot about it. A) She must have forgotten about the training session. B) She should have forgotten about the training session. C) She might have forgotten about the training session. D) None of the above. Show Answer Correct Answer: C) She might have forgotten about the training session. 57. Which has a different level of certainty? A) Can't. B) Couldn't. C) Must not. D) Might not. Show Answer Correct Answer: D) Might not. 58. We use ..... when something is possible (50%). A) Must. B) May/might/can/could. C) Can't / couldn't. D) None of the above. Show Answer Correct Answer: B) May/might/can/could. 59. I don't have any money left after going shoppingyesterday. A) You mustn't have spent all your money. B) You should have spent all your money. C) You shouldn't have spent all your money. D) None of the above. Show Answer Correct Answer: C) You shouldn't have spent all your money. 60. She ..... left her keys at the office, but she's not sure. A) Must have. B) Might have. C) Couldn't have. D) Can't have. Show Answer Correct Answer: B) Might have. Next →Related QuizzesAuxiliary Verbs QuizzesVerbs QuizzesPast Modals Of Deduction Quiz 2Can And Could QuizContinuous Modal Verbs QuizMay And Might QuizModal Perfect Tense QuizModal Verb QuizModal Verbs For Advice QuizModals Expressing Permission Quiz 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books