单项选择题

His job ______ a great deal of travelling.

A．obliges
B．requests
C．involves
D．produces
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单项选择题
It was courageous ______ Mr. Dorris to try to save the drowning man.
A．for
B．of
C．about
D．with
单项选择题
The child ______ at the twinkling star in wonder.
A．glanced
B．glared
C．gazed
D．watched
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