Rock-climbing is a breathtaking activity, very popular nationwide among young people, ______ cooperation as well as courage plays an important role.
#31049
A
who
B
which
C
where
D
of which
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________ is quite natural,a beginner can't read the books written in English very quickly.
#80332
A
Which
B
As
C
What
D
It
—Look，the paint is starting to come off ________the wall is damp.—Well，we’d better have the wall repainted some day.
#30619
A
when
B
where
C
if
D
once
______ is well known to everyone, I should say, is that a man becomes learned by asking questions.
#31205
A
Who
B
It
C
As
D
What
She thought I was talking about her daughter in fact，I was talking with my daughter.
#30615
A
whom
B
where
C
which
D
while