单项选择题

A．Every ten minutes.
B．At twenty to one.
C．Every half an hour.
D．Once a day.
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单项选择题
A．In the doctor’s office.B．In the waiting room.C．In the classroom.D．In the living room.
A．In the doctor’s office.
B．In the waiting room.
C．In the classroom.
D．In the living room.
单项选择题
A．In a hotel.B．In a house.C．In a two-bedroom apartment.D．In a three-bedroom apartment.
A．In a hotel.
B．In a house.
C．In a two-bedroom apartment.
D．In a three-bedroom apartment.
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