(2013·高考北京卷)Don’t turn off the computer before closing all programs，________you could have problems.
#30670
A
or
B
and
C
but
D
so
推荐题目
It is difficult for us to imagine_____ life was like for slaves in the ancient world.
#30005
A
where
B
what
C
which
D
why
My parents don’t mind what job I do _____ I am happy.
#80576
A
even though
B
as soon as
C
as long as
D
as though
——Did you inform Helen of the plan put forward at the meeting?—Of course. ________ I saw her.
#30283
A
So long as
B
If only
C
The moment
D
Any time
There’s a feeling in me __________ we’ll never know what a UFO is – not ever.
#32665
A
of which
B
which
C
that
D
what
______ his timely help, Kate overcame the hardship at last.
#31814
A
Now that
B
Thanks to
C
Since
D
Because