The key ___the problem is to meet the demand___by customers

The key ___the problem is to meet the demand___by customers
A.to solving,making Bto solving,made C,to solving,making D,to solve,made
刘德华586 1年前 已收到1个回答 举报

弘新 幼苗

共回答了14个问题采纳率:92.9% 举报

选B,key to sth--某件事的关键.后面要跟名词,solving the problem是动名词,符合要求.made是被动语态,句子里是顾客所作出的要求.

1年前

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