They smile to cover embarrassment．,It is an unusual and-找考题网

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．A city guide.B．A librarian.C．A computer expert.D．A registrar.

A．A city guide.
B．A librarian.
C．A computer expert.
D．A registrar.

单项选择题A．They are attending a concert.B．They are negotiating about a price.C．They are planning to go for a date.D．They are buying something for their firm.

A．They are attending a concert.
B．They are negotiating about a price.
C．They are planning to go for a date.
D．They are buying something for their firm.

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