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We’d better set off，or it will be dark         we know it.
#80424
A
before
B
after
C
when
D
until
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It was in the street_________ I met Mary yesterday .
#33658
A
that 　　
B
when
C
where
D
what
________ advertisements are of great help, I don’t think we should entirely rely on them.
#31478
A
Because
B
Since
C
Once
D
While
John thought it wouldn’t be long       he was ready for his new job.
#31896
A
since
B
when
C
before
D
after
It was some time _______ I realized the fact that I had been cheated by the salesman.
#31376
A
until
B
before
C
unless
D
since
You should wear a shirt with long sleeves _________ you get burnt in the sun.
#30399
A
in case
B
so that
C
although
D
because