This quiz works best with JavaScript enabled. Home > English Grammar > Grammar > Parts Of Speech > Verbs > Auxiliary Verbs > Modal Verbs > Modals Of Deduction – Quiz 17 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Modals Of Deduction Quiz 17 (30 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. John has forgotten about the meeting. We ..... him about it yesterday. A) Should have reminding. B) Must have reminded. C) Can have reminded. D) Should have reminded. Show Answer Correct Answer: D) Should have reminded. 2. Can and Can't can be used as possible and impossible. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 3. It's possible John is working on something new. A) He must be writing a novel. B) He could be writing a novel. C) He can't be writing a novel. D) That's not possible. Show Answer Correct Answer: B) He could be writing a novel. 4. My mother ate some chocolate. The doctor said that she must avoid that. A) She must not have eaten chocolate. B) She could have eaten a little. C) She should have eaten Nestle chocolate. D) None of the above. Show Answer Correct Answer: A) She must not have eaten chocolate. 5. The movie ..... have started yet! When I bought the tickets, they said it started at 11 pm and it's only 9! A) Mustn't. B) Can't. C) May not. D) None of the above. Show Answer Correct Answer: B) Can't. 6. The door was locked from the inside, so the person ..... the house yet. A) Can't be left. B) Can't have left. C) Might have left. D) None of the above. Show Answer Correct Answer: B) Can't have left. 7. Daniel records himself playing videogames twice a week. He ..... be a gamer. A) Must. B) Might. C) Can't. D) None of the above. Show Answer Correct Answer: A) Must. 8. That's the second car they have bought in the last 6 months. They ..... rich. A) Must. B) Can't. C) Might. D) None of the above. Show Answer Correct Answer: A) Must. 9. He told me that he would wait for my call, but now he's not answering his phone. He ..... be in a meeting. A) May not. B) Can't. C) Might. D) Must. Show Answer Correct Answer: D) Must. 10. The restaurant was closed due to health violations. A) It could have been a permanent closure. B) It must not have been a serious issue. C) It may have been a temporary closure. D) None of the above. Show Answer Correct Answer: C) It may have been a temporary closure. 11. Julia was invited to Lisa's party, but she doesn't know what time it starts. She lost the invitation, so she texted Lisa to find out. A) It couldn't be at 2:00 p.m. B) It may be at 2:00 p.m. C) It must be at 2:00 p.m. D) None of the above. Show Answer Correct Answer: B) It may be at 2:00 p.m. 12. He ..... gone to Russia. He didn't have a passport. A) Might have. B) Couldn't have. C) Might not have. D) Must have. Show Answer Correct Answer: B) Couldn't have. 13. That man must be a doctor. A) They finished their dinner an hour ago. B) Look-he's listening to that man's heart. C) It's possible that he's a nurse. D) None of the above. Show Answer Correct Answer: B) Look-he's listening to that man's heart. 14. You hear loud noises coming from your neighbor's house at 3 AM. What could be happening? A) They must be having a party. B) It could be an accident. C) It can't be anything important. D) None of the above. Show Answer Correct Answer: A) They must be having a party. 15. When we aren't so sure, we use ..... or ..... to express doubt. A) Must. B) Can't. C) Could/Might. D) None of the above. Show Answer Correct Answer: C) Could/Might. 16. You ..... not have bought that car if you already have two. A) Must. B) May. C) Should. D) None of the above. Show Answer Correct Answer: C) Should. 17. Marc is in a terrible mood. The meeting ..... been good. A) Can have. B) Can't have. C) Will be. D) Could have. Show Answer Correct Answer: B) Can't have. 18. He must ..... tired. He hasn't slept all night. A) Be. B) Have been. C) All the above. D) None of the above. Show Answer Correct Answer: A) Be. 19. Julio had a stomachache because he had eaten so many tacos last night. A) He should have been at the hospital. B) He should have taken an Alka seltzer. C) He should hadn't eating so many tacos. D) None of the above. Show Answer Correct Answer: B) He should have taken an Alka seltzer. 20. Police are convinced the paintings ..... taken out of the coutry already. A) Must have. B) May have. C) Must have been. D) Might have been. Show Answer Correct Answer: C) Must have been. 21. ..... + base form of a verb is used when ..... something is true A) Might / it is possible. B) Must / believe. C) Can't / isn't true. D) None of the above. Show Answer Correct Answer: B) Must / believe. 22. She ..... be at home, the lights are on. A) Must. B) Can't. C) Might. D) None of the above. Show Answer Correct Answer: A) Must. 23. I heard a noise, there ..... be a cat on the roof.I'm not sure, I'm going to check ..... A) Must. B) Can't. C) Might. D) None of the above. Show Answer Correct Answer: C) Might. 24. I've already finished all my work, so I ..... study tonight. I think I'll read for a while. A) Mustn't. B) Don't have to. C) Must. D) Have to. Show Answer Correct Answer: B) Don't have to. 25. You ..... be tired. You've just woken up and you slept about 10 hours. A) Mustn't. B) Can't. C) Mightn't. D) None of the above. Show Answer Correct Answer: B) Can't. 26. To give the promotion to Harold was silly. He ..... (know) much about this company after only a year working here. No wonder our sales are down! A) Couldn't have known. B) Couldn't have know. C) Could had known. D) Could have known. Show Answer Correct Answer: A) Couldn't have known. 27. I don't know why he hasn't called me back. He ..... A) Must have forgotten my number. B) Might forget my number. C) Might have forgotten my number. D) None of the above. Show Answer Correct Answer: C) Might have forgotten my number. 28. Oh, no! My car ..... (refuses to) start. A) Won't. B) Doesn't. C) Shan't. D) Couldn't. Show Answer Correct Answer: A) Won't. 29. They might be at the restaurant.2. I'm sure they're at the restaurant. A) Same meaning. B) Different meaning. C) All the above. D) None of the above. Show Answer Correct Answer: B) Different meaning. 30. A:The Great Wall of China took around 2500 years to build. B:Thousands of people ..... in the construction. A:Yes indeed millions. A) Cant have worked. B) Mustn't have worked. C) Might have worked. D) Must have worked. Show Answer Correct Answer: D) Must have worked. ← 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