1. He is not working hard now.
2. It is not raining
3. We are not going to the movie
4. Nam is not writing a letter
5. She is not eating in the cafeteria.
6. Van is not smoking at the door
7. Giang is not having her English lesson now.
Phủ định thì cứ thêm not thôi nhá a/chị
Chúc anh chị học tốt!