单项选择题

When the tragic accident happened, the train was going at its ___________ speed.

A．full
B．whole
C．complete
D．entire
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单项选择题
Lung cancer has now ___________ breast cancer as a cause of death for women in the U. S.
A．overcome
B．prevailed
C．overtaken
D．conquered
单项选择题
She says he works hard, and ___________.
A．so he does
B．so does he
C．does he so
D．he so does
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