The teacher set such a difficult problem ________none of us could solve.
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A
that
B
so that
C
which
D
as
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The last thirty years _____ the greatest number of laws stopping our rights and progress. Until today we have reached a stage _____ we have almost no rights at all.
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A
saw; which
B
see; where
C
are seeing; in which
D
have seen; where
The ordinary house _________ we visited three days ago used to be the house of Victor Hugo, a well-known litterateur(文学家).
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A
what
B
where
C
to which
D
不填
The parks will also honor _________ who helped the survivors as well as who died in the terrible disaster.
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A
them.
B
those
C
ones
D
it
Do you know the year ________ the Chinese Communist Party was founded?
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A
which
B
that
C
when
D
on which
In the dark street there wasn’t a single person _____ Mary could turn for help.
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A
to whom
B
to which
C
on whom
D
on which