问题

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

正确答案是：

同类题型

下列句中加横线的词语和现代汉语中的意义相同的一项是（）

I didn’t go there____the bad weather.

the young man was shown the evidence, he _______ and told everything he had done to the police.

The Whites are leading a very happy life; the farm is big enough for them to ____.

He may come, but I’m not sure _______ that.