He came back for the book which he had forgotten这句对吗?which能换成that吗?都能省略吗?
问题描述:
He came back for the book which he had forgotten这句对吗?which能换成that吗?都能省略吗?
答
对 能 能
答
可以的,而且都可以省略,因为此处其充当宾语.