单项选择题

--Must I turn off the light when I leave--NO,________

A． you mustn’t
B． you can’t
C． you needn’t
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单项选择题
A heavy stone ________ his foot.
A． fell on
B． knocked down
C． fallen down
单项选择题
In today’s lesson we will ________ the British system of government with the American.
A． take
B． provide
C． compare
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