问题
选择题
________ 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
答案：B
答案：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。