单项选择题

A body, ______ it is in motion, would never stop itself if there were no friction.

A．where
B．by time
C．once
D．at the moment
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单项选择题
Gettysburg was the ______ of the most important battle in American Civil War.
A．scene
B．view
C．sight
D．landscape
单项选择题
My father didn't fly to London for the opening ceremony, because his doctor suggested that he ______ there.
A．not to go
B．hadn't gone
C．not go
D．wouldn't go
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