单项选择题

A．They smile to cover embarrassment.
B．It is an unusual and even suspicious behavior.
C．They smile to show politeness.
D．It is an expression of pleasure.
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单项选择题
A．In the dancing room.B．Opposite the fireplace.C．Opposite the door.D．Beside the chest of drawers.
A．In the dancing room.
B．Opposite the fireplace.
C．Opposite the door.
D．Beside the chest of drawers.
单项选择题
A．The climate.B．One’s social position.C．The materials available.D．Family size.
A．The climate.
B．One’s social position.
C．The materials available.
D．Family size.
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