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I’m very grateful for your help and hope that someday I may be able to do something for you . A. in exchange B. in turn C. in return D. in particular 【查看更多】

 

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I'm very grateful for your help and hope    that someday I may be able to do something for you___．   
[    ]
A. in exchange    
B. in turn    
C. in vain    
D. in particular

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I’m very grateful for your help and hope that someday I may be able to do something for you_____．

A．in exchange           B．in charge         C．in return         D．in turn

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