Question

The reason she failed in the exam was______. 告诉我为什么？谢谢

5.The reason she failed in the exam was______.

A.that she hadn't worked hard
B. because she hadn't worked hard
C.why she hadn't woeked hard
D.because she was too careless

Answer 1

选A
这是一个表语从句，表语从句的引导词有：that, what, who, when, where, which, why,
whether,how.
所以because开头的肯定不对
而选项C不能用在这里reason为主语的情形，假如用why 的话，要这么说：
This was why she failed in the exam.
否则句子的意思都不对了。

Answer 2

A
that引导表语从句
她没有通过考试的原因是她没有好好学习。
用because和why的话，前面已经有reason，意思也不符合。

Answer 3

A.that she hadn't worked hard
be 动词后面的表语用that 从句

Answer 4

A.这是一个表语从句,应用代词that,what等引导.因此这里选a.

Answer 5

A 填that引导的从句