填空题


【参考答案】

working
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填空题
Living in the country is less ______ (expense) than living in the city.
单项选择题
A．About 50 pages.B．It is very long.C．About two hours.D．It is two hours.
A．About 50 pages.
B．It is very long.
C．About two hours.
D．It is two hours.
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