They____ have arrived at lunchtime but their flight was delayed.[     ]A. will  

They____ have arrived at lunchtime but their flight was delayed.[     ]A. will  

题型:同步题难度:来源:
They____ have arrived at lunchtime but their flight was delayed.[     ]
A. will    
B. can
C. must    
D. should
答案
D
举一反三
You____ buy a  gift, but you can if you want to.   [     ]
A. must    
B. mustn"t    
C. have to    
D. don"t have to
题型:同步题难度:| 查看答案
— 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
题型:同步题难度:| 查看答案
"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 
题型:同步题难度:| 查看答案
— What sort of house do you want to have?  Something big?
— Well, it ______ be big-that"s not  important.   [     ]
A. mustn"t            
B. needn"t    
C. can"t                
D. won"t
题型:同步题难度:| 查看答案
The boss has given everyone a special  holiday, so we ______ go to work  tomorrow.  [     ]
A. can"t              
B. mustn"t    
C. needn"t          
D. shouldn"t
题型:同步题难度:| 查看答案
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