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
where
D
of which
推荐题目
_____earth scientists understand how and why earthquakes happen, forecasts are usually inaccurate.
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A
As
B
While
C
Because
D
If
_The work is easy for an expert _______it is difficult for an inexperienced person.
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A
because
B
therefore
C
while
D
unless
She cared more about her students than her own health. That’s why two years passed _____ she was treated for breast cancer.
#30370
A
since
B
before
C
after
D
until
The prize will go to the writer______ story shows the most imagination.
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A
that
B
which
C
whose
D
what
There’s a feeling in me __________ we’ll never know what a UFO is – not ever.
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A
of which
B
which
C
that
D
what