He was very tired，and________he didn’t give the market report.
#31908
A
otherwise
B
besides
C
however
D
therefore
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—Do you know about the accident which happened in the center of the city? —Yes. But it was some time we realized the truth.
#30209
A
before
B
when
C
since
D
until
—____when has the country been open to international trade?—1978,I suppose.
#79800
A
Since
B
In
C
From
D
After
_______ your opinions are worth considering, the committee finds it unwise to place too much importance on them.
#33397
A
As
B
Since
C
Once
D
While
____ ，but he still could not understand it.
#32468
A
Told many times
B
Having been told many times
C
He had been told many times
D
Though he had been told many times