EX9:

1. We haven't celebrated for 2 years.

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

3. Michelle has collected stamps since 2015.

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

5. This is the first time my nephew James has drunk beer.

6. David is used to forgetting his books.

7. I have never watched such an exciting film as 'the glass shoes' before.

8. This is the most challenging competition she has taken part in.

9. How long have they opened this shopping center?

10. After they had ordered the food, they had a discussion.

EX10:

1. The last time i went to the zoo is over a year.

2. I haven't really enjoyed myself since your farewell party.

3. This is the first time i have lived in a luxuriuos building.

4. Tom has been in England since last sunday.

5. How long is it since you last rode a motorbike?

Bài 9:

1. We haven't celebrated for 2 years.

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

3. Michelle has collected stamps since 2015.

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

5. This is the first time my nephew James has drunk beer.

6. David is used to forgetting his books.

7. I have never watched such an exciting film as 'the glass shoes' before.

8. This is the most challenging competition she has taken part in.

9. How long have they opened this shopping center?

10. After they had ordered the food, they had a discussion.

Bài 10:

1. The last time i went to the zoo is over a year.

2. I haven't really enjoyed myself since your farewell party.

3. This is the first time i have lived in a luxuriuos building.

4. Tom has been in England since last sunday.

5. How long is it since you last rode a motorbike?

`-` Cấu trúc thì hiện tại hoàn thành: S + have/has + Vpp