_____ in the mountains for a week, the two students were finally saved by the local police.

来源：百度知道 编辑：UC知道 时间：2024/06/02 13:50:45
_____ in the mountains for a week, the two students were finally saved by the local police.
A Having lost B Lost C Losing
这里答案是B, 其他两个怎么排除呢,特别是选项A

A.应该用having been lost，因为lost是形容词，sb is lost.或者sb is missing.
C.Losing 没有丢失的意思。不能用主动式。

之前说错了..抱歉0..0不说了..汗...

前面从句的主语也是the two students,完整的句子应该是the two students have been lost in the mountains for a week.所以要选择B。

B Lost
这是非谓语动词（短语），转换成状语从句应该是After they were lost in the mountains for a week.
所以选B