The police still   haven"t found the lost child, but they"re doing all they  ___

The police still   haven"t found the lost child, but they"re doing all they  ___

题型:同步题难度:来源:
The police still   haven"t found the lost child, but they"re doing all they  ____.    [     ]
A. can   
B. may    
C. must    
D. should
答案
A
举一反三
The traffic is heavy  these days. I ____ arrive a bit late, so could you save me a place?[     ]
A. can    
B. must  
C. need    
D. might
题型:同步题难度:| 查看答案
— ____ I take the   book out?  
— I"m afraid not.   [     ]
A. Will                        
B. May      
C. Must                      
D. Need
题型:同步题难度:| 查看答案
— I  don" t  really  like    James. Why did you invite him?    
— Don"t worry. He _____ come. He said   he wasn" t certain what his plans were.     [     ]

A. must not                  
B. need not      
C. would not                  
D. might not

题型:同步题难度:| 查看答案
John promised his doctor he  _____ not  smoke, and he has never smoked ever since. [     ]
A. might                    
B. should      
C. could                      
D. would
题型:同步题难度:| 查看答案
— I haven"t got the  reference book yet, but I"ll have a test on  the subject next month.  
— Don"t worry. You ____ have it by Friday.    [     ]
A. could                      
B. shall    
C. must                        
D. may
题型:同步题难度:| 查看答案
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