单项选择题

He said that books on ______ popular science are in ______ short supply.

A．the; a
B．/; /
C．/; the
D．the; the
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单项选择题
As it turned out to be a problem of no importance, we______ so much time looking into it.
A．needn't spend
B．didn't have to spend
C．oughtn't to spend
D．needn't have spent
单项选择题
—He is______ a brave man.—We can't admire his courage ______.
A．actually; very much
B．indeed; too a lot
C．really; too much
D．truly; a bit
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