单项选择题

They agreed to modify their policy.

A．clarify
B．change
C．define
D．develop
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单项选择题
He endured agonies before he finally expired.
A．fired
B．resigned
C．died
D．retreated
单项选择题
The girl is gazing at herself in the mirror.
A．staring
B．laughing
C．shouting
D．smiling
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