Question

Everybody knows about it! No one knows _________ prevented the rumor from spreading.

1. A.
   what was it that
2. B.
   what it was that
3. C.
   how it was that
4. D.
   why it was that

Answer 1

B
试题分析：考查强调句的特殊疑问句做宾语从句：强调句的特殊疑问句结构为：疑问词＋is/was it that...？因为是做宾语，所以语序是陈述句语序，句意：每个人都知道，没人知道是人们阻止谣言传播的。选B。
考点：考查强调句型特殊疑问句
点评：强调句型特殊疑问句的基本结构为：疑问词is/was it被强调成分that/who其它成分；其最大的特点是把it is/was…that/who…去掉以后句子仍然成立。这里做宾语从句时要变成陈述句语序。