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,谢谢!!!

选D,店里的笔太多了,我不知选哪个。这是疑问词+ 不定式结构。例如,I don't know where to go.
祝你进步哟!
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第1个回答  2009-03-03
B
第2个回答  2009-03-03
D ,有如此多的钢笔在商店,我不能决定买哪一只。
疑问词+动词不定式
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