1. B. did-travel

2. B. had been/worked

1. Some people just aren’t able to sing.

2. She could be in the airport.

3. I could ride a horse when I was six.

4. John might not go to Turkey.

5. You mustn’t block the emergency exit.

6. You mustn’t use mobile phones on the plane.

7. You must fasten your seat belt for landing and taking off.

8. He may be there to meet us.

9. You shouldn’t tell anybody about it.

11. He might get it.

12. She couldn’t sell it.

13. Roberto might leave for Australia soon.

14. You shouldn’t have shouted at Thomas yesterday.

15. We could go for a walk in the country.

16. The old woman might fall on the street and break a leg. She should carry a stick.

17. She must be ill in bed.

18. You should have come with me.

19. I might have dropped them when I went shopping.

20. You mustn’t go in.

21. She must have bought it.

22. I must have left it at home.

23. The boy should help his parents on the farm during the summer holidays.

24. The library must be closed.

1. We didn't go to school last week. 

2. What does he want to do?

3. She goes swimming once a week. 

4. I always eat breakfast at six. 

5. What is the weather like in autumn? 

6. He and his sister are listening to music in their room at the moment. 

7. Where are you going for your holiday next summer? 

After I go to class, I often go over my notes to understand the lesson better.

1. We haven't celebrated Christmas for the past 2 years.

2.The last time Linda had her teeth checked was last year.

3. Michelle has been collecting stamps since 2015.

4. Before Linda sat on the sofa to watch TV, she made a sandwich.

1. I want to buy a suitable kind of suncream for my skin.

2. Walking to school is also a way of exercising.

3. Don't touch your face with dirty hands.

4. Have you gotten sunburnt recently?

5. My brother and my sister love outdoor activities.

6. I want to become fitter and healthier.

35. Linh likes to collect stamps of different countries around the world.

36. Mrs. Ha made many models when she was a student.

37. Are you fond of reading novels in your free time?

38. Hoa sent me flowers and gifts for my birthday last week.

39. During her girlhood, she helped her parents earn money to support the family.

40. Some people think that drinking coffee í not good for health.

1. Nick said that he came from England.
2. Nam asked me if I liked pop music.
3. Jim asked his girlfriend how many pairs of shoes she had.
4. Peter asked Jane if she was going to London the following week.
5. Mom asked my sister if she had done the laundry.
6. Jane asked Peter if his brother lived in London.
7. Jim asked his sister what she was doing at that moment.
8. We have to try harder to keep up with their handicrafts.

9. Farmers can live on traditional handicrafts as they are free between harvests. 

10. People in community get on well with one another so that they can follow the same craft. 

Dạng 3: from... to....= between ... and ...

1.the film starts from 7 pm to 9 pm.
2. We study between 8 am and 10 am.
3. My father works from 9 am to 7 pm.
4. The store opens from 6 am to 8 pm.

Dạng 4: love / like / enjoy + Ving / N = to be interested in / to be keen on / to be fond of + Ving/N

1. I am fond of chatting with friends in my free time.
2. He is keen on baking cakes on the weekend.
3. They are interested in making models after a hard working day.
4. He enjoys dancing.