REF XIX. Turn these sentences into Negative and Internative : Hãy chuyển câu sau sang thể phủ định và nghi vấn);
1. Miss Hoa's Mai's teacher,
2. Forget to wash your hands before and after meals,
3. My sister can sing Chinese songs
4. Mrs Ba always washes her bike on Saturday mornings,
5. Beckham will buy some new books next Friday,
6. Owen's shirt is new,
7. We shall help that old man next Sunday morning.
8. Del Pierro is going to stay at home tomorrow night,
9. These boys get up early every morning,
10. Danh will tell the story in a few days