The government has taken some measures to solve the shortage of electricity , but it may be some time _________the situation improves.
#31957
A
since
B
when
C
before
D
unless
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Tom shut everybody out of the study ___ he could prepare for the coming exam.
#79751
A
which
B
when
C
so that
D
as if
To show our respect, we usually have to take our gloves off ______ we are to shake hands with.
#32576
A
whichever
B
whenever
C
whoever
D
wherever
_________ difficult and challenging the task may be, we must finish it on time, because there is a possibility _________we’ll be fired if we can’t fulfill the task on time．
#31669
A
Whatever; that
B
However; that
C
Whatever; which
D
However; as
We do jobs_____they need to be done and that could be early in the morning or late at night.
#34066
A
that
B
which
C
when
D
how
_______these coins are of different shapes, sizes and colors, they all date back to a long, long time ago.
#32529
A
Since
B
Unless
C
Once
D
While