was most shocking about the tornadoes in America was that they threatened six states and

发布时间：2020-08-16 17:46:10

     was most shocking about the tornadoes in America was that they threatened six states and killed more than 100 persons.
A. That
B. Which
C. Why
D. What

网友回答

A. That
B. Which
C. Why
(答案→)D. What
解析：考查名词性从句。此题考查的是主语从句，从句中缺少主语，所以使用关系词what。
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