单项选择题

A．Boss and secretary.
B．Doctor and patient.
C．Teacher and student.
D．Shop assistant and customer.
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单项选择题
A．10 yuan.B．2 yuan.C．5 yuan.D．20 yuan.
A．10 yuan.
B．2 yuan.
C．5 yuan.
D．20 yuan.
单项选择题
A．At the restaurant.B．In a hotel.C．In a shop.D．In the street.
A．At the restaurant.
B．In a hotel.
C．In a shop.
D．In the street.
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