What has not yet been announced is _____ the English contest will be held. I guess it may be held in the hall.
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A
where
B
that
C
when
D
how
推荐题目
Water，which seems so simple and common，is________makes life possible.
#79483
A
what
B
that
C
which
D
how
We got lost in the forest and decided to remain _____ we were and waited for rescue．
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A
how
B
what
C
where
D
who
What is even more important is_____ the earth cooled down, water began to appear on its surface.
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A
that
B
that as
C
which
D
which as