Beijing was attacked by such a terrible sandstorm __________few citizens has ever experienced before.
#77869
A
where
B
as
C
when
D
which
推荐题目
Is that the reason __________ you are in favor of Obama for the second round?
#78058
A
which
B
why
C
the one
D
for which
She has a gift for creating an atmosphere for her students_________ allows them to communicate freely with each other.
#77358
A
which
B
where
C
what
D
who
Two years later, her father disappeared, never to be _________ again.
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A
heard from
B
hear about
C
hear of
D
heard out
The hottest continent, Africa has a lot of resources, ______ are still undeveloped.
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A
many of them
B
many of whom
C
many of it
D
many of which