单项选择题

Thick clouds obscured the stars from view.

A．darkened
B．held
C．blackened
D．prevent
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单项选择题
When Jack eventually overtook the last truck he pulled over to the inside lane.
A．skipped
B．passed
C．reached
D．led
单项选择题
After supper we usually take a stroll around the park for about an hour.
A．walk
B．rest
C．bath
D．breath
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