单项选择题

A．People considered them essential.
B．They were common in the United States, but not in Europe.
C．Only a few people had them.
D．They were actually not very accurate.
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单项选择题
A．In a restaurant.B．In a book shop.C．In a record store.D．In a theater.
A．In a restaurant.
B．In a book shop.
C．In a record store.
D．In a theater.
单项选择题
A．Helen is quiet.B．Helen is talkative.C．Helen is sociable.D．Helen is active.
A．Helen is quiet.
B．Helen is talkative.
C．Helen is sociable.
D．Helen is active.
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