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

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单项选择题
Wilma became the first American woman to win three Olympic gold medals in track,()made her mother very proud.

A.it
B.that
C.which
D.this
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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