--We could have asked Tom for help.He is always ready to help others.- I ____ (forget) about that.A long time was wasted.填什么时态

问题描述:

--We could have asked Tom for help.He is always ready to help others.- I ____ (forget) about that
.A long time was wasted.填什么时态

have forgetten

forgot

forgot 表示我们本来可以向TOM需求帮助,但是我当时忘了~

had forgotten