12、It was by making great efforts          she caught up with other students.

A．how          B．when             C．what             D．that

12、D

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It was by making great efforts_______she caught up with other students.

       A．how  B．when C．what  D．that

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科目：高中英語(yǔ) 來(lái)源： 題型：

It was by making great efforts          she caught up with other students.

A．how          B．when             C．what             D．that

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