单项选择题

Please call me back______you see this message.

A．as well as
B．as early as
C．as far as
D．as soon as
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单项选择题
Mr. Smith used to smoke______but he has given it up recently.
A．immediately
B．roughly
C．heavily
D．completely
单项选择题
If you need more information, please contact us______telephone or e-mail.
A．in
B．by
C．on
D．for
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