单项选择题

I didn't know your mobile phone number; otherwise I ______ you the moment I got to Washington.

A．have rung
B．wound ring
C．have rung
D．wound have rung
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单项选择题
How can you keep fit ______ you smoke so much every day
A．but
B．however
C．if
D．otherwise
单项选择题
The news has spread allover the country ______ the spaceship succeeded in returning to the earth.
A．what
B．that
C．which
D．whether
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