1、 You have forgotten ______your home,that's very dangerous.A:to lock B:locking C:to open D

问题描述:

1、 You have forgotten ______your home,that's very dangerous.A:to lock B:locking C:to open D

A have forgotten to do sth

A

A 表示忘记做某事了,就是没有做的意思
不能选B,B的意思是已经做过了,现在忘记了