问题
The reason why she had a headache was _______ she had been reading for too long.
A:that
B:which
C:because
D:for
B:which
C:because
D:for
正确答案是：
同类题型
The poor man , ________，ranout of the dark cave.
Only when possible to settle the problem.[ ]
－Does your mother have a hobby－No, ____________ you call watching TV a hobby.
John _______to come to the teacher’s office just now. He may be in trouble.
_______in thought, he didn’t notice that the teacher was right in front of him [ ]