单项选择题

In some countries more and more young people now need ______ teeth.

A．false
B．spare
C．untrue
D．unnatural
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单项选择题
Trains stop here in order to ______ passengers only.
A．get off
B．pull up
C．get on
D．pick up
单项选择题
A．A week ago.B．At 9:30 p.m.C．On Wednesday.D．It s time to get to the train.
A．A week ago.
B．At 9:30 p.m.
C．On Wednesday.
D．It"s time to get to the train.
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