单项选择题

Last month more than a hundred workers were killed in the mine ______.

A. exploitation
B. explosion
C. explication
D. explosivity
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单项选择题
David has ______ much work to do that he is staying late at his office. A) such C) very B)so D) enough
David has ______ much work to do that he is staying late at his office.
A) such C) very
B)so D) enough
单项选择题
He escaped from the battlefield only ______ by the local people.
A. killed
B. to kill
C. to be killed
D. killing
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