题目内容：

帮我写些英语句子,
1.This is a book(变一般疑问句并回答）
2.There are many potatoes(改为否定句)
3.They are teachers(改为否定句)
4.I have many photos(变一般疑问句)
5.He has two apple(变一般疑问句)
6.Peter likes coffee(变一般疑问句和否定句)
7.She has a green dress(改为否定句)
8.Tese aren,t apple(改为单数形式）