In the final exam of last term, our maths teacher Mr.Wu gave us ________we all couldn’t work out .
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A
such a difficult problem that
B
so a difficult problem as
C
so difficult a problem that
D
as difficult a problem as
推荐题目
The news _____ the spaceship succeeded in returning to the earth spread everywhere.
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A
that
B
which
C
whether
D
what
It was ______ he said ______ disappointed me.
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A
that; what
B
that; that
C
what; that
D
what; that
Was it because of the heavy snowstorm in Europe the flight had to be put off?
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A
which
B
so
C
why
D
that
Please keep the windows closed _____________ it rains.
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A
in case of
B
in that case
C
in no case
D
in case
It is estimated that nearly 100 million people live here, most of ______ in the west.
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A
which
B
whom
C
that
D
them