单项选择题

Charles Babbage is generally considered______the first computers.

A. to invent
B. inventing
C. to have invented
D. invented
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单项选择题
After the war, a new school building was put up______there hadn't once been a theater.
A. that
B. where
C. which
D. When
单项选择题
A man is being questioned in relation to the______murder.
A. advised
B. attended
C. attempted
D. admired
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