单项选择题

passage one
Questions 26 to 28 are based on the passage you have just heard.

A．By filtering sea water.
B．By treating sea water with chemicals.
C．By taking salt out of sea water.
D．By drying up sea water.
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单项选择题
A．She should have asked to be excused from the trip.B．She deserves the zero.C．She is right to be angry.D．She should have gone on the field trip.
A．She should have asked to be excused from the trip.
B．She deserves the zero.
C．She is right to be angry.
D．She should have gone on the field trip.
单项选择题
A．In a grocery store.B．In a bank.C．In a book store.D．In a post office.
A．In a grocery store.
B．In a bank.
C．In a book store.
D．In a post office.
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