Thefirstthing________weshoulddois

发布时间:2020-07-11 14:44:48

The first thing ________ we should do is to master the basic grammar













A.which












B.that











C.as











D.of which

网友回答

B解析定语从句考查题。先行词为The first thing因为有first修饰 thing所以关系词只能用that不能用which。
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