This quiz works best with JavaScript enabled. Home > Grammar > Parts Of Speech > Verbs > Auxiliary Verbs > Modal Verbs > Past Modals Of Deduction – Quiz 4 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Past Modals Of Deduction Quiz 4 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. They ..... been at the cafe but I'm not sure A) Might have. B) Must have. C) Couldn't have. D) None of the above. Show Answer Correct Answer: A) Might have. 2. We ..... (plan) a new campaign. Otherwise we would have lost the elections. A) Had to plan. B) Have must planned. C) All the above. D) None of the above. Show Answer Correct Answer: A) Had to plan. 3. "Harry's new jacket doesn't seem to fit him very well." - "He ..... it on before he bought it." A) Must have tried. B) Should have tried. C) May have tried. D) Might have tried. Show Answer Correct Answer: B) Should have tried. 4. Which do we use when we are certain something is true? A) Might. B) Can't. C) Must. D) May not. Show Answer Correct Answer: C) Must. 5. I'm sure Sam and Ginny haven't got lost. They have GPS in their car. A) Sam and Ginny might not have got lost. B) Sam and Ginny mustn't have got lost. C) Sam and Ginny can't have got lost. D) None of the above. Show Answer Correct Answer: C) Sam and Ginny can't have got lost. 6. Fill in the blank:She ..... have left her keys at home. A) Could. B) Might. C) Must. D) May. Show Answer Correct Answer: D) May. 7. Alicia is crying. A) She must have argue with her parents. B) She could be argued with her parents. C) She might have had an arguement with her parents. D) She may arguing with her parents. Show Answer Correct Answer: C) She might have had an arguement with her parents. 8. He ..... it was your birthday. Otherwise, I'm sure he would have wished you a happy day A) Might have known. B) Must have known. C) Can't have known. D) Shouldn't have known. Show Answer Correct Answer: C) Can't have known. 9. Complete with the correct use of past modals of deduction:Where's Clare? Her bag's here and her computer's still on so she ..... gone home. A) Might have. B) Must have. C) Can't have. D) None of the above. Show Answer Correct Answer: C) Can't have. 10. -Why isn't John at work yet?-I don't know, he ..... the train. A) Must have missed. B) Might have missed. C) Should have missed. D) Might not have missed. Show Answer Correct Answer: B) Might have missed. 11. How did you get my number? It's not listed in the phone book, so you ..... it in the directory A) May not have found. B) Won't have found. C) Might not have found. D) Couldn't have found. Show Answer Correct Answer: D) Couldn't have found. 12. Complete with the correct use of past modals of deduction:I can't remember my password! But I ..... written it in my notebook as sometimes I do that. A) Might have. B) Must have. C) Couldn't have. D) None of the above. Show Answer Correct Answer: B) Must have. 13. I ..... a professional dancer, but I broke my leg when I was 17. A) Must have been. B) Shouldn't have been. C) Could have been. D) Might be. Show Answer Correct Answer: C) Could have been. 14. A. I ..... written down the number incorrectly.B. I've just called a hospital not the restaurant. A) Could have. B) Must have. C) Might have. D) None of the above. Show Answer Correct Answer: B) Must have. 15. I'm sure Lucy has bought a new car. I saw her drivinga blue VW Golf! A) Lucy could have bought a new car. B) Lucy can't have bought a new car. C) Lucy must have bought a new car. D) None of the above. Show Answer Correct Answer: C) Lucy must have bought a new car. 16. We use ..... when something is impossible (0%). A) Must. B) May/might/can/could. C) Can't / couldn't. D) None of the above. Show Answer Correct Answer: C) Can't / couldn't. 17. You saw Ellie yesterday? That's impossible. Shewas in bed with flu. A) You shouldn't have seen Ellie yesterday. B) You couldn't have seen Ellie yesterday. C) You might not have seen Ellie yesterday. D) None of the above. Show Answer Correct Answer: B) You couldn't have seen Ellie yesterday. 18. Sarah looked very happy after her driving test. She ..... passed. A) Might have. B) Can't have. C) Could have. D) Must have. Show Answer Correct Answer: D) Must have. 19. Fill in the blank:I'm not sure, but they ..... gone to the movies. A) Must have. B) Should have. C) Could have. D) Might have. Show Answer Correct Answer: D) Might have. 20. Fill in the blank:They are celebrating! They ..... have won the game A) Must. B) Can't. C) Should. D) Musn't. 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