This quiz works best with JavaScript enabled. Home > 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 (25 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) Can't. B) Might not. C) May not. D) Must. Show Answer Correct Answer: A) 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) May have. D) Might have. Show Answer Correct Answer: A) Must have. 4. Sarah ..... so happy when she found out she was being promoted. A) Shouldn't have been. B) Might have been. C) Can't have been. D) Must have been. Show Answer Correct Answer: D) Must have been. 5. Fill in the blank:I'm not sure, but she ..... forgotten about the meeting. A) Could have. B) May have. C) Should have. D) Might have. Show Answer Correct Answer: B) 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) Should have. B) Might have. C) Could have. D) Must have. Show Answer Correct Answer: B) Might have. 8. I ..... some fruit. I have nothing in the fridge. A) Must buy. B) Mustn't buy. C) Could buy. D) Don't have to buy. Show Answer Correct Answer: A) Must buy. 9. You ..... ill yesterday. Jessie saw you at the bowling alley A) Couldn't have. B) Mustn't have. C) Shouldn't have. D) Might have. Show Answer Correct Answer: A) Couldn't have. 10. 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. 11. 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. 12. 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. 13. 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. 14. I'm sure Ben has read my email. I sent it first thingthis morning. A) Ben must have read my email. B) Ben must had read my email. C) Ben mustn't have read my email. D) None of the above. Show Answer Correct Answer: A) Ben must have read my email. 15. I ..... about the exams. When I got my results, I realized I had good marks. A) Had to be worried. B) Shouldn't be worried. C) Needn't worry. D) Needn't have worried. Show Answer Correct Answer: D) Needn't have worried. 16. Oh no! My phone's not in my bag. I ..... it at home. A) Must have left. B) Should have left. C) Can have left. D) None of the above. Show Answer Correct Answer: A) Must have left. 17. 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. 18. I'm not sure if Samantha is still here. She ..... already left the office. A) May have. B) Can't have. C) Must have. D) Couldn't have. Show Answer Correct Answer: A) May have. 19. It's a good thing you wore a helmet. You ..... yourself. A) Can't have hurt. B) Must have hurt. C) Could have hurt. D) Should have hurt. Show Answer Correct Answer: C) Could have hurt. 20. If you can't find your house keys, you ..... them in car. A) Shouldn't have left. B) Would rather have left. C) Can't have left. D) Must have left. Show Answer Correct Answer: D) Must have left. 21. 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. 22. 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. 23. 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 might not have done it. C) He must have done it. D) He couldn't have done it. Show Answer Correct Answer: A) He may have done it. 24. 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. 25. 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. 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