这这边,having lost the key=lost the key么?

问题描述:

这这边,having lost the key=lost the key么?
句子是这样的:Having lost the key,the boy couldn't enter his house.

不等.
如果从句用lost,就变成了被动式,显然不对你好。非谓语中,have lost不等于省略have写成lost 吗?这里的having lost是主动式,如果省略have而直接写成lost,就变成被动式。所以不能省略。