题目内容：

关于定语从句的一些问题
1,In an hour ,we can travel to places ______ would have taken our ancestor days to reach.
A,where
B,when
C,which
D,what
为什么答案是C
2,Is this the the reason ______ at the meeting for his carelessness in his work?
A,he explained
B,what he explained
C,how he explained
D,why he explained
为什么答案是A
3,"Why does she always ask you for help?"
"There is no one else ______,is there?"
A,to who she can turn
B,she can turn to
C,for whom to turn
D,for her to turn
为什么答案是B
4,The reason ______ I'm writing to you is to tell you about a party on Saturday.
A,because
B,why
C,for
D,which
为什么答案是B
5,The boy didn't believe the fact ______.
A,that most of us thought it to be true
B,as most of us thought true
C,most of us thought to be true
D,what most of us thought was true
为什么答案是C