The reason why we don't trust him is ________ he often lies．
The reason why we don't trust him is ________ he often lies．
A.why
B.that
C.because
D.for what
答案及解析： B
解析：
the reason作主语，其表语从句的引导词只能用that．
The reason why we don't trust him is ________ he often lies．
A.why
B.that
C.because
D.for what
答案及解析： B
解析：
the reason作主语，其表语从句的引导词只能用that．