Tom was about to close the window__________his attention was eaught by a bird.
#34748
A
when
B
if
C
and
D
till
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Be quick, _____ we’ll miss the beginning of the fireworks display in the park.
#31590
A
so
B
or
C
because
D
though
The government has taken some measures to reconstruct the earthquake-hit areas, but it must be some time ________ everything returns to normal.
#32572
A
since
B
after
C
unless
D
before
We had to be patient because it ______ some time ______ we got the full results.
#30195
A
was; since
B
had been; since
C
was; before
D
would be; before