This quiz works best with JavaScript enabled. Home > English Grammar > Grammar > Parts Of Speech > Verbs > Auxiliary Verbs > Modal Verbs > Modals Of Deduction – Quiz 12 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Modals Of Deduction Quiz 12 (30 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. 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. 2. He ..... he lost. He's looking at the map. A) Mustn't. B) Must. C) Could. D) Couldn't. Show Answer Correct Answer: C) Could. 3. 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. 4. 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. 5. 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. 6. Your grandparents ..... puzzled when you explained what an app is. A) Might have felt. B) Might have. C) Must have felt. D) Must be. Show Answer Correct Answer: C) Must have felt. 7. 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. 8. 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. 9. 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. 10. 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. 11. 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. 12. 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. 13. 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. 14. 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. 15. This old map ..... help us find the hidden treasure, but I'm not sure if it's accurate enough. A) Could. B) Must. C) Can't. D) May not. Show Answer Correct Answer: A) Could. 16. 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. 17. This assignment is far too easy for someone at her level. She ..... get a low score. A) Must. B) Mustn't. C) Can't. D) Can. Show Answer Correct Answer: C) Can't. 18. 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. 19. 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. 20. The neighbor ..... be out. There aren't any light. A) Might. B) Might not. C) Must. D) Can't. Show Answer Correct Answer: C) Must. 21. 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. 22. 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. 23. 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. 24. 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. 25. 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 when 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 which my sister used to listen to in the 1990s. Show Answer Correct Answer: D) This is the song which my sister used to listen to in the 1990s. 26. They ..... all this work in just an hour. (There's too much to finish in such a short time.) A) Can't do. B) Couldn't have done. C) Mustn't have done. D) Can't have done. Show Answer Correct Answer: D) Can't have done. 27. 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. 28. 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. 29. 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. 30. Max wasn't in the office yesterday. He ..... ill. A) Can't be. B) Might have been. C) Couldn't have been. D) Must be. Show Answer Correct Answer: B) Might have been. ← 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