改变句型. 4.This is a book.(改为复数形式） 5.Those are his rulers.(改为一般疑问句）6.These are apples.（改为否定句）7.That's Lin Jiang.(用who提问）8.They are at school.(用where提问）
问题描述：
改变句型. 4.This is a book.(改为复数形式） 5.Those are his rulers.(改为一般疑问句）
6.These are apples.（改为否定句）
7.That's Lin Jiang.(用who提问）
8.They are at school.(用where提问）
答
4these are books
5are those rulers his ?
6there are not apples
7who is that ?
8where are they ?
答
4 These are books.
5 Are those his rulers?
6 These aren't apples.
7 Who is that?
8 Where are they?