单项选择题

19 Smoking will do harm______your health．

A．with
B．to
C．at
D．for
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单项选择题
______had Jane reached the airport when the plan took off．
A．No sooner
B．Only
C．Seldom
D．Hardly
单项选择题
The manager together with his colleagues______a warm welcome then．
A．were receiving
B．receive
C．is receiving
D．was receiving
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