They didn’t go to bed ________ they finished their homework.
#55880
A
when
B
because
C
until
D
if
推荐题目
—It’s very hot in the room! --_______ the door open?
#55563
A
Why don’t keep
B
Why don’t to keep
C
Why not keep
D
Why not you to keep
What a pity! I have only one ruler in my pencil case. ______ you ______ he can borrow it.
#55424
A
Neither; nor
B
Both; and
C
Either; or
D
Not only; but also
My father was preparing for his speech __ my mother was doing some washing last night.
#58386
A
if
B
while
C
unless
D
until