问题 选择题

We students should treasure the short senior school’s study life of three years. Once ________, the opportunity can’t get back.

A.losing

B.was lost

C.lost

D.being lost

答案

C

题目分析:考查状语从句的省略:句意:我们每个学生应该珍惜短暂的三年高中学习生活,一旦失去了,机会不再来。Once引导的是条件状语从句,是省略句,完整的是once the short senior school’s study life is lost,主从句主语一致的时候,主语和be动词可以省略,选C。

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