题目内容
---Susan looks unhappy today.
---Yes, but she can’t tell what it is ______ is bothering her.
- A.as
- B.what
- C.that
- D.which
C
宾语从句其实是一个强调结构,所以用that。
宾语从句其实是一个强调结构,所以用that。
练习册系列答案
相关题目
题目内容
---Susan looks unhappy today.
---Yes, but she can’t tell what it is ______ is bothering her.