单项选择题

Because of the high blood pressure, the doctor advised him to ______ from smoking.

A．constrain
B．restrain
C．refrain
D．remain
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______ London of Dickens' time comes to ______ life in his books.
A．The, /
B．/, /
C．/, the
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The child ______ at the twinkling star in wonder.
A．glanced
B．glared
C．gazed
D．watched
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