It was said was how the Chinese first raised silk worms.
#72116
A
that what
B
that which
C
that who
D
that that
推荐题目
(2013·四川，7)He is so busy.He cannot afford enough time with his son________he wants to.
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A
even if
B
as if
C
because
D
before
_____ you may have, you should gather your courage to face the challenge.
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A
However serious a problem.
B
What a serious problem.
C
However a serious problem.
D
What serious a problem.
--- I can’t find Xiao Ping. Where did you see him this morning?--- In the reading room _________ he often studies in.
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A
that
B
where
C
in which
D
the one
Marry was so excited _____ she received an invitation from her friend to visit Beijing.
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A
where
B
that
C
why
D
when
You must be careful when ___ on the highway.
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A
you driving
B
are driving
C
driving
D
you were driving