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
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This is one of the few best films ______ highly thought of by the public.
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A
which is
B
that are
C
that is
D
which are
It will be another 50 years ______ our country is expected to reach the level of a medium developed country.
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A
since
B
before
C
that
D
when
, and we each can have one.
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A
A few more books
B
Giving us a few more books
C
To give us a few more books
D
Given us a few more books
To improve the quality of our products, we asked for suggestions _____ had used the products.
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A
whoever
B
who
C
whichever
D
Which
. It’s not ____ I won’t do it, _____ I can’t do it.
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A
what; but that
B
because; but what
C
what; but because
D
that; but that