1 . are going

2 . are having

3 . is reading

4 . are doing 

5 . are brushing

6 . are traveling

7 . isn't doing/is sleeping

8 . aren't working/are doing

9 . isn't doing/is watching

10 . Is ...reading

11 . Are....playing

12 . Are ... washing

13 . Is....traveling

14 . is....reading/is listening

15 . is traveling

1.They are going to school

2. Lan and Hoa are having breakfast

3. My father is reading book

4. The students are doing their homework

5. They are brusing their teeth

6. Mr and Mrs Smith are travelling to Ha Noi

7. My sister isn't doing her homework. She is sleeping

8. His parents aren't working in the factory. They are doing in the gardening

9. The girl isn't doing the housework. She is watching tv

10. Is Nga  reading a book now?

11. They are playing a game in the yard

12. Are The children  washing their clothes?

13. Is your mother travelling to DaNang now?

14. What is Mr Hung reading book now? he is listening to the radio

15. she is travelling to work by car

( Bạn kiểm tra kĩ lại giúp mình nhé, mình sợ sai sót)