Bài tập 2: Chuyển các câu sau đây sang dạng phủ định
1.    We are playing a chess..............................................................................................................
2.    She is drawing a picture.............................................................................................................
3.    He is making coffee right now...................................................................................................  
4.    Susan and her sister are cooking..............................................................................................
5.    Dad is working in the garden..................................................................................................... 
1. They (go) ____________to school.
2. Lan and Hoa (have) ____________ breakfast.
3. My father (read) ____________ a book.
4. The students ( do) ____________ their HW.
5. They (brush) ____________their teeth.
6. Mr and Mrs Smith (travel) ____________ to Hanoi.
7. My sister (not do) her homework. She (sleep) ____________
8. His parents (not work) ____________in the factory. They (do) ____________ the gardening.
9. The girl (not do) ____________the housework. She (watch) TV.
10. Nga (read) ____________ a book now?
11. They (play) ____________a game in the yard?
12. The children (wash) ____________ their clothes?
13. Your mother (travel) ____________to Danang now?
14. What Mr Hung (read) ____________ now?
        He (listen) ____________ to the radio.
15. She (travel) ____________to work by car?