25．He left for lunch________ the clock_________ twelve．
#79724
A
while; hit
B
immediately; struck
C
right away; beat
D
at once; knocked
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—How long do you think it will be______ man can finally solve the problem of cancer?—Well，it depends
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A
when
B
until
C
after
D
before
______ we have enough evidence (证据), we can't win the case.
#30742
A
Once
B
As long as
C
Unless
D
Since
It is obvious to the students ______ they should get well prepared for their future.
#80678
A
as
B
which
C
whether
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that
— Will you go out to play for a while, Kate? —Not I finish all of my homework.
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A
when
B
if
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after
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unless
The suggestion we should have a discussion on this problem is not the one ________he made.
#32023
A
that, /
B
/, which
C
which, that
D
which, /