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You’ll fail your next exam          you start to work hard.
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A
because
B
unless
C
so
D
why
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---__________was your vacation? ---Very good.
#56269
A
What
B
Where
C
When
D
How
We didn’t go home         the old man was sent to the hospital.
#55259
A
until
B
when
C
while
D
after
Li Xiayu has a bad cold these days, ______ she still keeps studying English.
#58152
A
but
B
and
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so
D
or
---Your classroom report is so wonderful.---I wrote for 3 hours ___________ I finished it.
#58235
A
when
B
if
C
before
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after
 Ben was busy taking a training class.  ______we had to wait for himfor half an hour..
#57651
A
so
B
if
C
or
D
but