I found the girl----(lose) in thought when I came in.横线处怎么填?这句话=I found that the girl was lost in thought that可以省略吗?为什么?

问题描述:

I found the girl----(lose) in thought when I came in.
横线处怎么填?
这句话=I found that the girl was lost in thought
that可以省略吗?为什么?

可以,至于为什么说不上来

lost
that 可以省略,that引起宾语从句,可以省略