英语改复数形式改这几个哈……1、It's a knife.2、He is an English teacher.3、I'

英语改复数形式改这几个哈……1、It's a knife.2、He is an English teacher.3、I' 英语句型一、将下列句子改为复数形式1.I'm an English teacher.2.It is a knife.3. 英语!单数句改复数!1.He is a boy2.This is his pen3.It's an English bo 变为复数形式It's a knifeHe is an English teacher I'm a student 就换线 英语句子单数改复数!1、it's a knife.2、this is my book.3、what's this?4、w 改复数 单数形式复数：This is a good doctor I'm an English teacherIt is 英语改复数形式That is a dictionary This is an exercisebook It is a 英语句子改复数形式His father is a teacher. He has a knife.改复数句 句型转换（1）that's an english book 改否定句(2)this is a boy 改复数句(3)th 改复数形式He is a student. It,s a knife 变为复数形式