单项选择题

People used to think that the surface of the moon was smooth, ______

A．don't they
B．wasn't it
C．didn't they
D．usedn't they
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单项选择题
I think nobody wants to have their new car______.
A．repair
B．repairing
C．to repair
D．repaired
单项选择题
I would rather you ______them to those who appreciate them as presents.
A．give
B．gave
C．will give
D．have given
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