she is a teacher.变复数 it is a pen.变复数 this is myshe is a teacher.变复数 it is a pen.变复数this is my friend.变复数的一般疑问句,并做肯定及否定回答
问题描述:
she is a teacher.变复数 it is a pen.变复数 this is my
she is a teacher.变复数
it is a pen.变复数
this is my friend.变复数的一般疑问句,并做肯定及否定回答
答