Rock-climbing is a breathtaking activity, very popular nationwide among young people, cooperation as well as courage plays an important role.
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A
who
B
which
C
that
D
where
推荐题目
Now everyone is concerned about how to conquer the economic crisis, __________is very important for us to preserve our standard of living．
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which success
B
its success
C
the success of which
D
the success of it
Mark Twin wrote many popular novels in his life, ________ The Adventures of Tom Sawyer is a best example.
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of which
B
what
C
whose
D
which
Jane, I’ve shared just about everything since the first day of kindergarten, spent the weekend with me last month.
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A
who
B
for whom
C
with whom
D
that
Maria has written two novels , both of _______ made into television.
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them
B
that
C
which
D
what
The astronaut did many experiments in the spaceship, ______ much help for knowing space.
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A
which we think it is
B
which we think are of
C
of which we think are
D
I think which is of