--Why is she at Xiao Ying’s home?--_________ they are friends.
#57974
A
So
B
For
C
Since
D
Because
推荐题目
They didn't go to bed_____ the work was finished.
#57763
A
when
B
while
C
until
D
after
__________he is ill, __________he goes to school. 
#56079
A
Although, but
B
/, /
C
Although, /
D
But, although
This story is too difficult for us. _____ read something easier.
#55137
A
Why not
B
Why not to
C
Why not you
D
Why don’t