单项选择题

A．It is not at all dangerous if one is careful.
B．It won’t cost much to buy a bike.
C．It does them a lot of good.
D．It is interesting.
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单项选择题
A．She doesn’t have a fax machine.B．She may quit her present job soon.C．She is tired of her present job.D．Her phone number has changed.
A．She doesn’t have a fax machine.
B．She may quit her present job soon.
C．She is tired of her present job.
D．Her phone number has changed.
单项选择题
A．It has improved animal breeding skills all over the world.B．It has helped relieve hunger in some developing countries.C．It has promoted international exchange of fanning technology.D．It has bridged the gap between the rich and the poor in America.
A．It has improved animal breeding skills all over the world.
B．It has helped relieve hunger in some developing countries.
C．It has promoted international exchange of fanning technology.
D．It has bridged the gap between the rich and the poor in America.
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