Before the problem can be solved,it must be obvious ________ the problem itself is.(2011·湖南,31)A.wh

题目简介

Before the problem can be solved,it must be obvious ________ the problem itself is.(2011·湖南,31)A.wh

题目详情

Before the problem can be solved,it must be obvious ________ the problem itself is.(2011·湖南,31)
A.whatB.thatC.whichD.why
题型:单选题难度:中档来源:不详

答案

A
句意:在解决问题之前必须弄清楚问题本身是什么。what引导主语从句,并在主语从句中充当表语。注:句中的it是形式主语。

更多内容推荐