单项选择题

Ice and snow ______ houses near the North pole.

A．used to build
B．are used to building
C．are used to build
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单项选择题
The telephone kept ______ until I answered.
A．ring
B．rang
C．ringing
单项选择题
I don't like ______ of the songs. None of them sounds wonderful.
A．any
B．either
C．every
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