问题描述：
将以下单词变为复数形式.句子单数变复数
card daughte cousin father sister brother son pencilcase family baby dictionary boy play photo watch bus class it she he you I is am this that
This is a book
That is an eraser
It is a red apple
I am a boy
He/She is a teacher
What ’s this?
card daughte cousin father sister brother son pencilcase family baby dictionary boy play photo watch bus class it she he you I is am this that
This is a book
That is an eraser
It is a red apple
I am a boy
He/She is a teacher
What ’s this?
问题解答：
我来补答展开全文阅读