This quiz works best with JavaScript enabled. Home > English Grammar > Grammar > Parts Of Speech > Verbs > Auxiliary Verbs > Modal Verbs > Modals Of Deduction – Quiz 13 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Modals Of Deduction Quiz 13 (30 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. You ..... finished that big book already! You only started reading it an hour ago. A) Couldn't have. B) Might have. C) Must have. D) None of the above. Show Answer Correct Answer: A) Couldn't have. 2. Karla ..... be in her bedroom. A) Might have. B) Must have been. C) Could have. D) Could. Show Answer Correct Answer: D) Could. 3. I think Bernie ..... be tired. She's been working hard all day. A) Might. B) Can't. C) Must. D) None of the above. Show Answer Correct Answer: A) Might. 4. They usually have dinner around this time. They ..... be eating dinner now A) May not. B) Can't. C) Must. D) Could. Show Answer Correct Answer: D) Could. 5. Robert ..... Mrs. Cruz! Mrs. Cruz was murdered four days ago at around 9 PM, and Robert was in my house all night on that day. I even have videos to prove it! He's innocent! A) May have killed. B) Must have killed. C) Should have killed. D) Can't have killed. Show Answer Correct Answer: D) Can't have killed. 6. They are quite angry. They ..... have enjoyed the movie. A) Must. B) Can't. C) Might. D) None of the above. Show Answer Correct Answer: B) Can't. 7. He ..... be tired after such a long day. (He worked from 7 a.m. to 8 p.m. without a break.) A) Can. B) Must. C) Can't. D) None of the above. Show Answer Correct Answer: B) Must. 8. The package ..... arrive today due to the delay in delivery. I guess I should stay at home tomorrow, too. A) Mustn't. B) Can't. C) Shouldn't. D) May not. Show Answer Correct Answer: D) May not. 9. If Susan said that, it ..... true. She never lies. A) Can't. B) Must. C) Might. D) None of the above. Show Answer Correct Answer: B) Must. 10. I thought you ..... be her sister as you have the same dark hair. A) May. B) Must. C) Might not. D) Can't. Show Answer Correct Answer: A) May. 11. You use it to digest food A) Stomach. B) Eyebrows. C) Shoulders. D) Ankle. Show Answer Correct Answer: A) Stomach. 12. I can't believe Jim hasn't arrived yet. He ..... taken the correct train. (almost sure) A) Mustn't have. B) Shouldn't have. C) Can't have. D) None of the above. Show Answer Correct Answer: C) Can't have. 13. I ..... have texted my ex last night while I was drunk. I have a lot of messages that confirm it! A) Must. B) Can. C) Might. D) None of the above. Show Answer Correct Answer: A) Must. 14. Jo ..... travel a lot. Her passport's full of visa stamps. A) Might. B) Must. C) May. D) None of the above. Show Answer Correct Answer: B) Must. 15. John might believe your story, but I don't. A) It is possible. B) It is certain. C) All the above. D) None of the above. Show Answer Correct Answer: A) It is possible. 16. Nora must travel a lot. Her passport's full of ..... A) Visa stamps. B) Blank pages. C) All the above. D) None of the above. Show Answer Correct Answer: A) Visa stamps. 17. I'm almost certain I know the answer. A) It could be 134!. B) That's right!. C) It might be 134!. D) It must be 134!. Show Answer Correct Answer: D) It must be 134!. 18. A:How much is the bag?B:It ..... expensive as it is not original. A) Must be. B) Can be. C) Might be. D) Can't be. Show Answer Correct Answer: D) Can't be. 19. That woman ..... be the new manager. Our new manager is a man. A) Can't. B) Must. C) All the above. D) None of the above. Show Answer Correct Answer: A) Can't. 20. They must be eating dinner now A) I remember they booked a table at a restaurant for around now. B) They usually eat around this time. C) The finished their dinner an hour ago. D) None of the above. Show Answer Correct Answer: A) I remember they booked a table at a restaurant for around now. 21. It's the world's oldest mystery. You ..... know the answer. A) Can't. B) Must. C) All the above. D) None of the above. Show Answer Correct Answer: A) Can't. 22. He ..... be in class. I saw him at the library a minute ago. A) Can't. B) Might not. C) Must. D) None of the above. Show Answer Correct Answer: A) Can't. 23. Anthony is posting a lot of pictures on facebook these days. I am not sure but he ..... gone on vacation. A) Can't have. B) Might have. C) Must have. D) None of the above. Show Answer Correct Answer: B) Might have. 24. I explained the homework but she did the wrong page. She ..... misunderstood me. A) May have. B) Might have. C) Couldn't have. D) Must have. Show Answer Correct Answer: D) Must have. 25. Sam drank some water after eating the noodles, so they ..... be spicy. A) CAN'T. B) MUST. C) COULD. D) None of the above. Show Answer Correct Answer: C) COULD. 26. Yuki's quite good at grammar. I think she ..... know the answer to this question. A) Must. B) Can't. C) May. D) Might not. Show Answer Correct Answer: C) May. 27. She could ..... at home. I don't know where she is. A) Be. B) Have been. C) All the above. D) None of the above. Show Answer Correct Answer: A) Be. 28. Come on! He looks too young. He ..... be a student, not the teacher. A) Must. B) Might. C) Can't. D) None of the above. Show Answer Correct Answer: A) Must. 29. 'What kind of bird is that?" I'm not sure. It ..... be an eagle but I can't see it very well.' A) Might. B) Must. C) Can't. D) None of the above. Show Answer Correct Answer: A) Might. 30. I ..... met Lisa before, but I'm not sure as I don't recognise her. A) May have. B) Must have. C) Should have. D) None of the above. Show Answer Correct Answer: A) May have. ← 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