单项选择题

Where are they talking

A．At school.
B．In the library.
C．On the street.
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单项选择题
A．alwaysB．sometimesC．never
A．always
B．sometimes
C．never
单项选择题
The two ends of a tunnel are very wide.
A．Right.
B．Wrong.
C．Doesn’t say.
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