This quiz works best with JavaScript enabled. Home > Grammar > Parts Of Speech > Verbs > Auxiliary Verbs > Modal Verbs > Modals Of Deduction – Quiz 25 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Modals Of Deduction Quiz 25 (30 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. This steak ..... be for me, It'a a rare and I asked for a well-done steak. A) Must. B) Can't. C) Might. D) None of the above. Show Answer Correct Answer: B) Can't. 2. I'm not sure, but I think Deniz ..... have broken up with her boyfriend. She seems very sad and lonely these days. A) May. B) Can't. C) Must. D) None of the above. Show Answer Correct Answer: A) May. 3. Nobody's answering. They ..... be out. A) Must. B) Might. C) All the above. D) None of the above. Show Answer Correct Answer: A) Must. 4. Johnny! You ..... play with sharp knives. Put that knives down immediately! A) Don't have to. B) Have to. C) Mustn't. D) Must. Show Answer Correct Answer: C) Mustn't. 5. They are late. They ..... or perhaps they overslept. A) Can't be slow walkers. B) May be slow walkers. C) Couldn't be slow walkers. D) None of the above. Show Answer Correct Answer: B) May be slow walkers. 6. I had to wait 45 minutes for a bus yesterday. There ..... been an accident or maybe a strike. (it's possible but I'm not certain) A) Should have. B) Might have. C) Can have. D) Must have. Show Answer Correct Answer: B) Might have. 7. Tom has been working late every day; he ..... be very busy with a project. A) Must. B) Might not. C) Can't. D) None of the above. Show Answer Correct Answer: A) Must. 8. Alice: "I locked myself out of my apartment. I didn't know what to do." Ben: "You ..... your roommate." A) Must have called. B) Would have called. C) May have called. D) Should have called. Show Answer Correct Answer: D) Should have called. 9. Look-He's listening to that man's heart. That man ..... be a doctor A) Can't. B) Might. C) Must. D) Might not. Show Answer Correct Answer: C) Must. 10. The traffic is moving very slowly; there ..... an accident ahead. A) Must be. B) Might. C) Can't. D) None of the above. Show Answer Correct Answer: A) Must be. 11. It's 5am. He ..... be at work. He only starts at 8. A) Must. B) Can't. C) All the above. D) None of the above. Show Answer Correct Answer: B) Can't. 12. Match the deduction of their meanings:a. He can't be a smuggler A) I'm certain he's not a smuggler. B) I think it's possible he's a smuggler. C) I'm certain he's a smuggler. D) None of the above. Show Answer Correct Answer: A) I'm certain he's not a smuggler. 13. Being a sky diving instructor ..... be very exciting. A) Can't. B) Could. C) Might not. D) Must. Show Answer Correct Answer: D) Must. 14. She ..... be pregnant again. She's just had a baby! A) Could. B) Can't. C) All the above. D) None of the above. Show Answer Correct Answer: B) Can't. 15. We ..... earlier. Now the restaurant's closed. A) Might have left. B) Can't have left. C) Should have left. D) None of the above. Show Answer Correct Answer: C) Should have left. 16. I can't have eaten your ham sandwich because I ..... meat. A) Eat. B) Don't eat. C) All the above. D) None of the above. Show Answer Correct Answer: B) Don't eat. 17. You ..... be serious. (It sounds like a joke or something unbelievable.) A) Might. B) Must. C) Can't. D) None of the above. Show Answer Correct Answer: C) Can't. 18. I'm sure Dan Cooper jumped out of the plane. A) He must have jumped out of the plane. B) He can't have jumped out of the plane. C) He might have jumped out of the plane. D) He must have jump out f the plane. Show Answer Correct Answer: A) He must have jumped out of the plane. 19. Anthony is very stressed out lately. I am not sure but he ..... gone on vacation. A) Can't have. B) Might have. C) Must have. D) Mustafa. Show Answer Correct Answer: B) Might have. 20. Sorry but I'm not Laura. You ..... be confusing me for someone else. A) Might. B) Must. C) All the above. D) None of the above. Show Answer Correct Answer: B) Must. 21. What is the right structure to do the past modals of deduction A) Pronoun +auxiliare +past participle+modals. B) Modals +past participle +auxiliare. C) Pronoun +modals +auxiliare +past participle. D) None of the above. Show Answer Correct Answer: C) Pronoun +modals +auxiliare +past participle. 22. I don't suppose she was sleeping when you called her. A) She must have been sleeping when you called her. B) She can't have been sleeping when you called her. C) She might have been sleeping when you called her. D) She may have been sleeping when you called her. Show Answer Correct Answer: B) She can't have been sleeping when you called her. 23. A:Daniela recently moved to Texas. B:That's so strange, I could have sworn I saw her yesterday near Paseo la Fe with her family. A) She would have been seen us. B) That might have been her twin sister. C) She may not have told us the truth. D) None of the above. Show Answer Correct Answer: C) She may not have told us the truth. 24. "Can't" and "shouldn't" have the same meaning when used for deduction. A) False. B) True. C) All the above. D) None of the above. Show Answer Correct Answer: A) False. 25. This ..... a fortune! (The house is huge, and it's in the most expensive part of town.) A) Must be costing. B) Must cost. C) Can't cost. D) None of the above. Show Answer Correct Answer: B) Must cost. 26. SEBASTIAN:That makes sense. They killed him so that at least one of them ..... get the inheritance. A) Should. B) Must. C) Could. D) None of the above. Show Answer Correct Answer: C) Could. 27. It's very loud in the house; the children ..... taking a nap. A) Must. B) Can't be. C) Might not be. D) None of the above. Show Answer Correct Answer: B) Can't be. 28. Come in and sit down. You ..... be tired after the long journey. A) A. must. B) B. might. C) C. can't. D) None of the above. Show Answer Correct Answer: A) A. must. 29. They can't be tourists. A) POSIBILITY. B) CERTAINITY. C) IMPOSSIBILITY. D) None of the above. Show Answer Correct Answer: C) IMPOSSIBILITY. 30. Look! That man is carrying a camera and a guidebook. A) He must be a lawyer. B) He must be a tourist. C) He must be a university student. D) He can't be enjoying the party. Show Answer Correct Answer: B) He must be a tourist. ← PreviousNext →Related QuizzesAuxiliary Verbs QuizzesVerbs QuizzesModals Of Deduction Quiz 1Modals Of Deduction Quiz 2Modals Of Deduction Quiz 3Modals Of Deduction Quiz 4Modals Of Deduction Quiz 5Modals Of Deduction Quiz 6Modals Of Deduction Quiz 7Modals Of Deduction Quiz 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books