Mass deaths of birds were not unheard of, but they normally happened unnoticed at sea or in rural areas away from towns. Many birds are weak and die in winter _______ food is scarce.
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A
which
B
what
C
when
D
how
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Dorothy was always speaking highly of her role in the play, ___ , of course, made the others unhappy.
#77661
A
who
B
which
C
this
D
what
The government of the United States began at once to investigate the case ______ a lot of students were killed.
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A
that
B
when
C
where
D
why
There are many good stories about the Long March, _________this is the most instructive.
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of which
B
in which
C
from which
D
by which
40 kilometers _____ Chengdu lies a town, _____ suffered great losses in the earthquake, but is now on the road to recovering.
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A
west of; which
B
on the west in; where
C
west of; where
D
on the west of; which
It was a meeting _________importance I did not realize at that time.
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A
that
B
which
C
its
D
whose