—The box is too heavy to carry. What's in it?      —Oh, it is ________ books.
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A
filled with
B
covered with
C
used for
D
asked for D
推荐题目
There used to ________ a school here.
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A
being
B
be
C
have
D
has
 It’s a beautiful desk which was ____ wood.
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A
made in
B
made of
C
made from
D
made into
He        out of the window and         a girl under the tree.
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A
looks, sees
B
watches, sees
C
sees, watches
D
looks, watches