精选优质文档-倾情为你奉上练习:把下列句型改成否定形式1. I am a teach。2. We have two new friends.3. She can swim.4. Theyre playing football.5. She goes to school at seven.6. Theres a pen in the pencil-box.7. I like reading books.8. Tom is interested in singing.9. My sister can dance.10. She likes apples.11. Mary sings very well.12. This is his book.13. We call it a joey.14. I go to the park on Sundays.15. Her brother can play basketball.16. There are some books on the desk.17. To