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科目： 來源：同步題 題型：單選題

He left two hours ago, so he____be  there by now.
[     ]
A. ought to    
B. shall
C. might   
D. need

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科目： 來源：同步題 題型：單選題

They____ have arrived at lunchtime but their flight was delayed.
[     ]
A. will    
B. can
C. must    
D. should

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科目： 來源：同步題 題型：單選題

You____ buy a  gift, but you can if you want to.   
[     ]
A. must    
B. mustn't    
C. have to    
D. don't have to

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科目： 來源：同步題 題型：單選題

— Must I take a bus?    
— No, you _____ . You can walk there.    
[     ]
A. must not          
B. don't    
C. don't have to      
D. had better

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科目： 來源：同步題 題型：單選題

"You _____ smoke in the bedroom,"   Rose said to her husband and pushed him  out of the room.   
[     ]
A. needn't            
B. mustn't    
C. dare not          
D. won't 

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科目： 來源：上海高考真題 題型：單選題

I _____ worry about my weekend-I always have my plans ready before it comes.
[     ]
A. can't
B. mustn't
C. daren't
D. needn't

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科目： 來源：高考真題 題型：單選題

A left luggage office is a place where bags _____ be left for a short time, especially at a railway station.
[     ]
A. should
B. can
C. must
D. will

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科目： 來源：期中題 題型：單選題

— Will my son be all right soon, doctor?
— Well, he _____ be, if he takes these tablets.

[     ]

A. may
B. must
C. should
D. can

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科目： 來源：福建省模擬題 題型：單選題

For environmental reasons, we _____ as well take these waste products and have them recycled.
[     ]
A. should
B. would
C. might
D. could

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科目： 來源：0107 模擬題 題型：單選題

— Will you stay for dinner?
— Sorry, I _____. My sister is coming to see me.
[     ]
A. mustn't
B. can't
C. needed
D. shouldn't

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