题目

题型：不详难度：来源：

________ she is not so cheerful ________ she used to be?

A．How it is that；as	B．How is it that；as
C．Is it why；that	D．Why is it that；what

答案

B

解析

B
解析　句意为：她怎么不像过去那样高兴了呢？强调句的特殊疑问句式：特殊疑问词＋is/was it that＋原句剩余部分？D项中的what不正确。