单项选择题

A．In a laboratory.
B．In a drugstore.
C．In a supermarket.
D．In the dining hall.
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单项选择题
A．Go to summer school.B．Take a vacation.C．Stay at home.D．Earn some money.
A．Go to summer school.
B．Take a vacation.
C．Stay at home.
D．Earn some money.
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