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2. You (don't have to/ mustn't/ ought not to) be an expert to use the basic functions of program. 3. You (should/ must/'ve got) to tell her that you are her mother. 4. You (were supposed to/ had got to/ must) go to the meeting. Why didn't you go? 5. I (mustn't/ don't have to/ shouldn't) wear glasses. I still can see perfectly well. 6. We went to bed right after dinner because we (had to/must/should) get up early the following day. 7. We (must/ can't/ should to) go for a drink one day. 8. You (hadn't to/ didn't have to/ shouldn't) take any money. I have enough for both of us. 9. What are you doing? You (don't have to/ aren't supposed to/ ought not) be here! 10. We (shouldn't/ weren't allowed to/ mustn't) talk to each other because it was an exam.
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Bài 11: Fill in the blanks with "couldn't/ have to/ might/ must/ ought to /shouldn't". 1. It's very cold today. Do you think it__________snow later? 2. You__________leave your door unlocked when you go out. 3. They__________have filled the car with petrol before they set off. 4. You don't__________pick me up at the station. I can get a taxi. 5. This is impossible, it__________be a mistake! 6. Tom__________have seen me because he walked past without saying "Hello".
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Bài 12: Fill in the blanks with "must/ might/ can't" 1. Your mother__________be a great cook. You are always so keen to get back home to eat! 2. I don't know why I am so tired these days. I__________be working too hard. Or maybe I am not sleeping too well. 3. Do you know where Mike is? He__________be out - his car keys are on the table. 4. You seem to know everything about the theatre. You__________go every week. 5. To give the promotion to David was silly. He__________ know much about this company after only a year working here. 6. Go and look in the kitchen for your gloves. They__________be in there. 7. Oh, the phone is ringing. Answer it. It__________be Lisa. She always rings at this time. 8. Bob has been drinking that whiskey since early this afternoon. He__________be totally drunk by now. 9. That couple__________think much of this film. They're leaving already - after only 20 minutes! 10. That's the second new car they have bought this year. They__________be very rich! Bài 13: Fill in the blanks with "must/ can't/ could/ may/ might" There may be more than one correct answer for each question. 1. I'm sure she is here - I can see her car in front of the building. She__________be here. I can see her car in front of the building. 2. They're coming this week but I don't know which day. They__________be coming tomorrow. 3. I'm not sure I'm going to pass the exam. I don't feel very confident. I __________pass the exam. I don't feel very confident. 4. I've bought a lottery ticket. There's a chance I'll become a millionaire! I__________become a millionaire! 5. I'm sure she doesn't speak French very well - she's only lived in Paris for a few weeks. She__________speak French very well. She's only lived in Paris for a few weeks. 6. My key's not in my pocket or on my desk so I'm sure it's in the drawer. My key's not in my pocket or on my desk so it__________be in the drawer. English 11
