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More and more young people are trying to do something the old. A. served B. to serve C. serve D. serves 【查看更多】

 

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More and more young people are trying to do something____ the old.    
[     ]
A. served    
B. to serve    
C. serve    
D. serves

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More and more young people are trying to do something _____ the old.  
[     ]
A. served    
B. to serve  
C. serve    
D. serves

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More and more young people are trying to do something _______ the old .     
[     ]

A.  served              
B.  to serve      
C.  to walk                
D.  walked

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More and more young people are trying to do something _____ the old.

[     ]

A. served
B. to serve
C. serve
D. serves

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More and more young people are trying to do something _____ the old．

A．served          B．to serve         C．serve          D．serves

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