单项选择题

A．Before the Middle Ages.
B．Around the 19th century.
C．In Greece or Rome.
D．Machines to take tests.
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单项选择题
A．He would prefer a more expensive model.B．He’s confused by the remote controls.C．He’s eager to use it.D．He’s not happy that he bought it.
A．He would prefer a more expensive model.
B．He’s confused by the remote controls.
C．He’s eager to use it.
D．He’s not happy that he bought it.
单项选择题
A．Most of them would be indifferent and keep on throwing garbage into the river.B．They would join the students in changing the situation.C．They would become more aware of the pollution problem.D．They would think twice before they went swimming or fishing in the river.
A．Most of them would be indifferent and keep on throwing garbage into the river.
B．They would join the students in changing the situation.
C．They would become more aware of the pollution problem.
D．They would think twice before they went swimming or fishing in the river.
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