单项选择题

A．They smile to cover embarrassment.
B．It is an unusual and even suspicious behavior.
C．They smite to show politeness.
D．It is an expression of pleasur
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单项选择题
A．It is needed to adjust the temperature of our bodies.B．It is our second need.C．We need it to cover our bodies.D．Weather is changing all the tim
A．It is needed to adjust the temperature of our bodies.
B．It is our second need.
C．We need it to cover our bodies.
D．Weather is changing all the tim
单项选择题
A．In the clinic.B．In the post office.C．In the grocery.D．In the department stor
A．In the clinic.
B．In the post office.
C．In the grocery.
D．In the department stor
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