This quiz works best with JavaScript enabled. Home > English Grammar > Grammar > Parts Of Speech > Verbs > Auxiliary Verbs > Modal Verbs > Modals Of Deduction – Quiz 8 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Modals Of Deduction Quiz 8 (30 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The baby is crying; he ..... hungry. A) Must be. B) Can't be. C) Might not be. D) None of the above. Show Answer Correct Answer: A) Must be. 2. We use the modal verbs may, ..... and could + base form of a verb when we think ..... that 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: A) Might / it is possible. 3. It can't be a spider, it only has ..... legs. A) Six. B) Eight. C) All the above. D) None of the above. Show Answer Correct Answer: A) Six. 4. I can't find my cat anywhere. I know; he ..... escaped through the window again. A) May have. B) Might have. C) Must have. D) Shouldn't have. Show Answer Correct Answer: C) Must have. 5. The room is completely empty, and the windows are closed. What might have caused the mess inside? A) It must have been an earthquake. B) It can be the wind. C) It could have been the cat. D) None of the above. Show Answer Correct Answer: C) It could have been the cat. 6. You ..... 200 friends on Facebook, but how many of them are truly your friends? A) Might have. B) Must be. C) Couldn't have been. D) Can't be. E) Must have felt. Show Answer Correct Answer: A) Might have. 7. I'm sure they ..... be planning something special for the party. A) Must. B) Could. C) Can. D) None of the above. Show Answer Correct Answer: A) Must. 8. Are your neighbors away? All the curtains are closed. I'm not sure. I suppose they ..... be on holiday. A) Can. B) Must. C) All the above. D) None of the above. Show Answer Correct Answer: B) Must. 9. This sentence is wrong. What is the mistake?It's six o'clock. She must have leave work by now. A) The modal. B) The tense of the second sentence. C) Nothing, it is correct. D) None of the above. Show Answer Correct Answer: B) The tense of the second sentence. 10. You ..... paid more attention. Now we are lost. A) Ought to have. B) Can't have. C) Must have. D) None of the above. Show Answer Correct Answer: A) Ought to have. 11. That ..... be Amanda in the shop. She's on holiday. A) Can't. B) Must. C) Could. D) None of the above. Show Answer Correct Answer: A) Can't. 12. He may be in his room.It refers to the ..... A) Present. B) Past. C) Future. D) None of the above. Show Answer Correct Answer: A) Present. 13. He ..... have passed his driving test. I'm sure because he practiced a lot. A) Must. B) Can't. C) Might. D) None of the above. Show Answer Correct Answer: A) Must. 14. A:I don't know how the cat escaped. B:It ..... out of the window. It was open when I arrived home. A) Should have gone. B) Must have gone. C) Might have gone. D) Can't have gone. Show Answer Correct Answer: B) Must have gone. 15. There is a man behind us. He has been walking behind us for the last 20 minutes. He must ..... us. A) Be following. B) Follow. C) Have followed. D) None of the above. Show Answer Correct Answer: A) Be following. 16. She ..... know the answer; she didn't study. (She skipped all the classes and didn't review the material.) A) Can't. B) Must. C) Might. D) None of the above. Show Answer Correct Answer: A) Can't. 17. You have walked for 10 hours. You ..... be exhausted. A) Can't. B) Must. C) All the above. D) None of the above. Show Answer Correct Answer: B) Must. 18. It definitely wasn't my phone that rang in the cinema. Mine was on silent. It ..... A) Might have been my phone. B) Could have been my phone. C) Must have been my phone. D) Can't have been my phone. Show Answer Correct Answer: D) Can't have been my phone. 19. I'm not sure where she is. She ..... gone to the gym. A) Must have. B) Could have. C) Can't have. D) None of the above. Show Answer Correct Answer: B) Could have. 20. They ..... be out. Nobody is answering the phone. A) Must. B) May. C) Can't. D) None of the above. Show Answer Correct Answer: A) Must. 21. He ..... earn a lot of money. He stills lives with his parents. A) Couldn't. B) Can't. C) Might. D) Must. Show Answer Correct Answer: B) Can't. 22. I ..... written down the number incorrectly. I've just called a hospital not the restaurant. A) Must have. B) Might have. C) Can't have. D) May have. Show Answer Correct Answer: A) Must have. 23. Tom ..... be working today-I just saw him at the gym. A) May. B) Might not. C) Must. D) Can't. Show Answer Correct Answer: D) Can't. 24. You've been working all day. You ..... be really tired. A) Must. B) Might / could. C) All the above. D) None of the above. Show Answer Correct Answer: A) Must. 25. He ..... by now. It's only a 20 minutes journey. A) Must have arrives. B) Musts have arrived. C) Must has arrived. D) Must have arrived. Show Answer Correct Answer: D) Must have arrived. 26. You got the job? That's great. You ..... feel very happy. A) Must. B) Could. C) Can't. D) None of the above. Show Answer Correct Answer: A) Must. 27. A:Who is that speaking fluent Arabic outside?B:I am sure it ..... be Mehmet because his Arabic is very poor, but it ..... be Omer as he is one of the people from the neighborhood who can speak it. A) Can't / might. B) Must / must. C) May / can't. D) Can't / can't. Show Answer Correct Answer: A) Can't / might. 28. The concert tickets are sold out; they ..... available anymore. A) Mustn't be. B) Can't be. C) Might not be. D) None of the above. Show Answer Correct Answer: B) Can't be. 29. What a wonderful trip! You ..... have incredible pictures. A) Must. B) Can't. C) Might. D) None of the above. Show Answer Correct Answer: A) Must. 30. A:How was your exam?B:I'm not sure. I ..... a few mistakes. A) Can't have done. B) Might have done. C) Should have done. D) Must have done. Show Answer Correct Answer: B) Might have done. ← 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 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books