---- I have some trouble with this problem. Could you do me a favour? ----- Sorry, you may turn to him. He has been and he may know how to solve it. A. experience B. expert C. skill D. around 参考答案21-25 BDDDB 26-30 CBDDD 31-35 CCBCD 9 查看更多

 

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---- I have some trouble with this problem. Could you do me a favour?

----- Sorry, you may turn to him. He has been ______ and he may know how to solve it.

A. experience     B. expert     C. skill      D. around

 

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