问题描述:
There are so many kinds of pens in the shop.I can't decide __.
A.to buy what B.to buy which C.what to buy D.which to buy
请高手给个确切的答案,再讲下其中的语法知识,
A.to buy what B.to buy which C.what to buy D.which to buy
请高手给个确切的答案,再讲下其中的语法知识,
问题解答:
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