She looks sad. Could you please tell me ____ that prevents her from being as happy as before?A.what

题目简介

She looks sad. Could you please tell me ____ that prevents her from being as happy as before?A.what

题目详情


She looks sad. Could you please tell me ____ that prevents her from being as happy as before?
A.what it isB.it is whatC.how it isD.it is how
题型:单选题难度:中档来源:不详

答案

A
本题含有强调句型,若把It is···that去掉,则很容易地看出what引导的宾语从句,what在从句中充当主语。故选A。

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