题目

Choose the correct sentence:____.          A.That’s all what I need.           B.That’s something I need     C.That’s what that I need.          D.That’s all which I need. 答案：B 解析: 连接代词what在主语从句、表语从句、宾语从句中，相当于“somehing that/things that”。先行词为all，定语从句只能用that。本题省去了something后的that。

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