is known to everybody, the moon travels round the earth once every month.
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A
It
B
As
C
That
D
Which
推荐题目
The road construction is based on the agreement, one of _______ purposes is to ensure its completion on time.
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A
which
B
whose
C
that
D
what
Harry lived in London for three months,______ he learned some English.
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A
which
B
in which
C
that
D
during which time
When deeply lost in thought, _______ he often was, he would forget all about eating or sleeping.
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A
that
B
where
C
which
D
when
He has lost the key to the drawer _____ the papers are kept.
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A
where
B
on which
C
under which
D
which