英语:把单数句改为复数句,把复数句改为单数句

问题描述:

英语:把单数句改为复数句,把复数句改为单数句
1、It is a schoolbag.
2、He is a teacher.
3、They are apples.
4、They are boys.

They are schoolbags
They are teachers
It is an apple
He is a boy