This quiz works best with JavaScript enabled. Home > English Grammar > Grammar > Parts Of Speech > Verbs > Auxiliary Verbs > Modal Verbs > Modals Of Deduction – Quiz 6 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Modals Of Deduction Quiz 6 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Look at this piece of art. Maybe it's Monet or it ..... be Van Gogh. A) Would. B) Could. C) Couldn't. D) None of the above. Show Answer Correct Answer: B) Could. 2. She's been studying 8 hours a day for 3 weeks. She ..... be exhausted. A) Must. B) Might. C) All the above. D) None of the above. Show Answer Correct Answer: A) Must. 3. You ..... know Peter because he went to the same school that we went to but he is a few years younger than we are. A) Might. B) Can't. C) Will. D) Must. Show Answer Correct Answer: A) Might. 4. When we're sure something ISN'T TRUE, we use A) Must. B) Can't. C) Could/Might. D) None of the above. Show Answer Correct Answer: B) Can't. 5. Sarah's flight landed an hour ago, but she ..... out of the airport yet. A) Mustn't have. B) Can't have. C) Might not have. D) None of the above. Show Answer Correct Answer: C) Might not have. 6. This ..... be the first time you've seen this film-it's been out for ages! A) Could. B) Must. C) Can't. D) None of the above. Show Answer Correct Answer: C) Can't. 7. John is wearing a suit; he ..... going to a job interview. A) Might not be. B) Can't be. C) Must be. D) None of the above. Show Answer Correct Answer: C) Must be. 8. Harry must be at school now.2. I'm sure Harry is at school now. A) Same meaning. B) Different meaning. C) All the above. D) None of the above. Show Answer Correct Answer: A) Same meaning. 9. She can't remember the suspect's face. But she ..... seen a distinguishing feature. A) Couldn't have. B) Must have. C) May have. D) None of the above. Show Answer Correct Answer: C) May have. 10. The car is still dirty. Paul ..... washed it yet. A) Can't. B) Must have. C) Must. D) Can't have. Show Answer Correct Answer: D) Can't have. 11. Sarah looks really pleased with herself. She ..... her driving test this morning. A) MUST HAVE PASSED. B) COULDN'T HAVE PASSED. C) MIGHT HAVE PASSED. D) None of the above. Show Answer Correct Answer: A) MUST HAVE PASSED. 12. He's a little older than John, but he ..... know him. I think they went to the same school. A) Can't. B) Might / could. C) All the above. D) None of the above. Show Answer Correct Answer: B) Might / could. 13. Clara and Laura weren't replying to my chat messages. Maybe they went to the movies or they ..... gone to a spa. A) Might have. B) Couldn't have. C) Must have. D) None of the above. Show Answer Correct Answer: A) Might have. 14. Dan and Michael ..... be in the same class, but I'm not sure. A) Can't. B) Must. C) Could. D) None of the above. Show Answer Correct Answer: C) Could. 15. You ..... (finish) the book! You only bought it yesterday. A) Might have finished. B) Can't have finished. C) Must have finished. D) None of the above. Show Answer Correct Answer: B) Can't have finished. 16. I'm sure he isn't revising for his test. A) He can't be revising for his test. B) He may not be revising for his test. C) He mustn't be revising for his test. D) He might not be revising for his test. Show Answer Correct Answer: A) He can't be revising for his test. 17. You see your friend walking down the street with a wet umbrella and shivering. What is the most likely explanation? A) He shouldn't have left the house without checking the weather. B) He might be planning to go swimming later. C) It could have rained earlier today. D) He must have forgotten his coat at home. Show Answer Correct Answer: C) It could have rained earlier today. 18. Otto ..... have lied to you. You know he's the most honest person alive! A) May not. B) Couldn't. C) Mustn't. D) None of the above. Show Answer Correct Answer: C) Mustn't. 19. He ..... he lost. He's looking at the map. A) Couldn't. B) Must. C) Mustn't. D) Could. Show Answer Correct Answer: D) Could. 20. There's a long line at the coffee shop; they ..... a special promotion today, but I am not sure. A) Might. B) Can't be. C) Must. D) None of the above. Show Answer Correct Answer: A) Might. 21. Frank just left home two minutes ago. He ..... A) Must. B) May. C) Can't. D) None of the above. Show Answer Correct Answer: C) Can't. 22. Maybe Philips has your sunglasses. I am not surePhilips ..... your sunglasses. A) May have. B) Must have. C) Can have. D) None of the above. Show Answer Correct Answer: A) May have. 23. Your grandparents ..... puzzled when you explained what an app is. A) Must have felt. B) Must be. C) Might have felt. D) Might have. Show Answer Correct Answer: A) Must have felt. 24. You ..... been ill yesterday. Jessie saw you at the bowling alley. A) Couldn't have. B) Mustn't have. C) May not have. D) None of the above. Show Answer Correct Answer: A) Couldn't have. 25. A:Who's at the door?B:I don't know; it ..... be John. A) Can't. B) Could. C) Must. D) None of the above. Show Answer Correct Answer: B) Could. 26. She ..... ; she's too honest for that. A) Must be lying. B) Can't be lying. C) Might be lying. D) None of the above. Show Answer Correct Answer: B) Can't be lying. 27. Nefi got married yesterday.He ..... be at the office now. A) Must. B) Might. C) Can't. D) None of the above. Show Answer Correct Answer: C) Can't. 28. They can't have played well because they ..... A) Lost. B) Won. C) All the above. D) None of the above. Show Answer Correct Answer: A) Lost. 29. She could ..... for her exams in the library now. (Her exams are next week, and she always studies there.) A) Be studying. B) Have studied. C) Study. D) None of the above. Show Answer Correct Answer: A) Be studying. 30. Come in and sit down! You ..... be tired after the journey. A) Can't. B) Must. C) Might/may/could. D) None of the above. Show Answer Correct Answer: B) Must. 31. She ..... like it. She left after 20 minutes. A) Must have. B) Might have. C) Can't have. D) None of the above. Show Answer Correct Answer: C) Can't have. 32. This old map ..... help us find the hidden treasure, but I'm not sure if it's accurate enough. A) May not. B) Must. C) Could. D) Can't. Show Answer Correct Answer: C) Could. 33. It's possible that you're still hungry.2. You may still be hungry. A) Same meaning. B) Different meaning. C) All the above. D) None of the above. Show Answer Correct Answer: A) Same meaning. 34. This assignment is far too easy for someone at her level. She ..... get a low score. A) Can't. B) Must. C) Can. D) Mustn't. Show Answer Correct Answer: A) Can't. 35. A:Hey, look at these photos of our great-grandmother that I found in the attic!B:Wow, she was so gorgeous! She ..... very popular with the guys! A) Must have been. B) Couldn't have been. C) Can have been. D) None of the above. Show Answer Correct Answer: A) Must have been. 36. You ..... her birthday. She was really upset. A) Might have remembered. B) Must have remembered. C) Should have remembered. D) None of the above. Show Answer Correct Answer: C) Should have remembered. 37. The neighbor ..... be out. There aren't any light. A) Can't. B) Might not. C) Must. D) Might. Show Answer Correct Answer: C) Must. 38. Mike and Susan go on holiday very often, so they ..... be short of money; it's impossible! A) Must. B) Might. C) Can't. D) None of the above. Show Answer Correct Answer: C) Can't. 39. Helen ..... be at secondary school. She's only eight. A) Must. B) Can not. C) Might. D) None of the above. Show Answer Correct Answer: B) Can not. 40. Someone is working late every night. What can you deduce? . A) They might be behind on their tasks. B) They can be lazy. C) They must hate their job. D) None of the above. Show Answer Correct Answer: A) They might be behind on their tasks. 41. They ..... to the party tonight. (They said they were free, but they haven't confirmed yet.) A) Might go. B) Might have gone. C) Can go. D) None of the above. Show Answer Correct Answer: A) Might go. 42. Transform these sentences using relative clauses:This is the song. My sister used to listen to it in the 1990s. A) This is the song which my sister used to listen to it in the 1990s. B) This is the song which my sister used to listen to in the 1990s. C) This is the song whom my sister used to listen to in the 1990s. D) This is the song when my sister used to listen to in the 1990s. Show Answer Correct Answer: B) This is the song which my sister used to listen to in the 1990s. 43. They ..... all this work in just an hour. (There's too much to finish in such a short time.) A) Couldn't have done. B) Can't do. C) Mustn't have done. D) Can't have done. Show Answer Correct Answer: D) Can't have done. 44. My friend promised to pick me up at 7:00. It's now 7:25 and I don't see him.HE ..... ( You don't have any idea about what happened to him) A) Might forget. B) Might have forgotten. C) Must have forgotten. D) None of the above. Show Answer Correct Answer: B) Might have forgotten. 45. What does the modal verb 'can't' indicate in a deduction? A) Certainty that something is not like that. B) Prohibition. C) All the above. D) None of the above. Show Answer Correct Answer: A) Certainty that something is not like that. 46. A:'The burglar broke into our home in daylight.' B:'Then some of your neighbours ..... him.' A) Might have seen. B) Can see. C) Might see. D) None of the above. Show Answer Correct Answer: A) Might have seen. 47. Max wasn't in the office yesterday. He ..... ill. A) Might have been. B) Couldn't have been. C) Can't be. D) Must be. Show Answer Correct Answer: A) Might have been. 48. Karla ..... be in her bedroom. A) Must have been. B) Could. C) Could have. D) Might have. Show Answer Correct Answer: B) Could. 49. 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. 50. They usually have dinner around this time. They ..... be eating dinner now A) Could. B) May not. C) Can't. D) Must. Show Answer Correct Answer: A) Could. 51. 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) Can't have killed. C) Must have killed. D) Should have killed. Show Answer Correct Answer: B) Can't have killed. 52. 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. 53. 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. 54. The package ..... arrive today due to the delay in delivery. I guess I should stay at home tomorrow, too. A) Shouldn't. B) May not. C) Can't. D) Mustn't. Show Answer Correct Answer: B) May not. 55. 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. 56. I thought you ..... be her sister as you have the same dark hair. A) Might not. B) Must. C) May. D) Can't. Show Answer Correct Answer: C) May. 57. You use it to digest food A) Ankle. B) Eyebrows. C) Shoulders. D) Stomach. Show Answer Correct Answer: D) Stomach. 58. 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. 59. 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. 60. 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. ← 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 7Modals Of Deduction Quiz 8Modals Of Deduction Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books