单项选择题

A．They smile to cover embarrassment.
B．It is an unusual and even suspicions behavior.
C．They smile to show politeness.
D．It is an expression of pleasure.
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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.
单项选择题
A．It is awarded to the best film of the festival.B．It was introduced in 1959.C．It was introduced by a commercial organization.D．Only American directors have received this award.
A．It is awarded to the best film of the festival.
B．It was introduced in 1959.
C．It was introduced by a commercial organization.
D．Only American directors have received this award.
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