题目内容：

英语句子变复数,变单数.
①My pen is red.
②Is his cat.
③What are those?
④these are elephants.
⑤We are teachers.
⑥They are gils.

优质解答

1.Our pens are red.
2.Are their cats.
3.What is this?
4.This is an elephant.
5.I am a teacher.
6.She is a girl.