单项选择题

A．Never.
B．Once,
C．Three times.
D．Six times.
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单项选择题
A．A teacher.B．A newspaperman.C．A traveler.D．A businessman.
A．A teacher.
B．A newspaperman.
C．A traveler.
D．A businessman.
单项选择题
A．Lock the door carefully.B．Open the door.C．Fix the lock himself.D．Call someone to repair the lock.
A．Lock the door carefully.
B．Open the door.
C．Fix the lock himself.
D．Call someone to repair the lock.
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