填空题

China should lose no time (catch) ______ up with the developed countries.

【参考答案】

catching

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填空题

century

单项选择题

A．When the school begins.B．Whether it is Wednesday.C．Where the school is.D．Whether she’s going to school.

A．When the school begins.
B．Whether it is Wednesday.
C．Where the school is.
D．Whether she’s going to school.

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