单项选择题

A．In warm air.
B．In cold air
C．When it reaches the polar region.
D．Only when the clouds are down low.
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单项选择题
A．Tony rather likes his present job.B．Tony has been laid off as of April 30.C．It is very likely for Tony to return to his job in the summer.D．Some other employees have lost their jobs befroe Tony.
A．Tony rather likes his present job.
B．Tony has been laid off as of April 30.
C．It is very likely for Tony to return to his job in the summer.
D．Some other employees have lost their jobs befroe Tony.
单项选择题
A．Dan.B．Donna.C．Mrs Morton.D．Pet
A．Dan.
B．Donna.
C．Mrs Morton.
D．Pet
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