单项选择题

（）adequate preparations, we might have succeeded.

A. Would we make
B. Had we made
C. If we are to make
D. If we were making

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Very little（）they had made an important discovery in science.

A. they realized
B. they realized what
C. did they realize
D. did they realize what
单项选择题
From this library we can borrow（）many books as we want to read.

A. that
B. such
C. as
D. too
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