A greenhouse is a building _______ of glass _______ for keeping plants warm when the outside temperature is low..
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A
made, which is used
B
which is made, is used
C
made, being used
D
is made, used
推荐题目
In our class there are 46 students,  ______ half wear glasses.
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A
in whom
B
in them
C
of whom
D
of them
There are two buildings,            stands nearly a hundred feet high.
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A
the larger
B
the larger of them
C
the larger one that
D
the larger of which