—What has made him look like lacking sleep?—_______ his wife is ill and he has to get up several times a night to attend to her.
#31700
A
For
B
Because
C
That
D
What
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He is a key ____________ in the murder so we must protect him from all kinds of danger.
#34297
A
witch
B
watcher
C
wizard
D
witness
(2013·吉林长春高中毕业班第一次调研)I'll make some sandwiches, just ________ we get hungry later.
#30544
A
even if
B
as though
C
if only
D
in case
Why not stay at home ______ the road is so slippery after the heavy snow?
#31925
A
in case
B
as long as
C
now that
D
even if