1. The internet is used by people all over the world

Dấu hiệu: use=> HTĐ

CT thì HTĐ: S + be + V3 (+ by Sb/ O)

2. The missing girl was found by the police

Dấu hiệu: found=> QKĐ

CT thì QKĐ: S + was/ were + V3 (+ by Sb/ O)

3. These tourist attractions are visited by large numbers of tourists

Dấu hiệu: annually=> HTĐ

CT thì HTĐ: S + be + V3 (+ by Sb/ O)

4. Po Nagar Cham Towers was built by them for a long time

Dấu hiệu: built, a long time=> QKĐ

CT thì QKĐ: CT: S + was/ were + V3 (+ by Sb/ O)

5. This museum isn't visited by tourist very often.

Dấu hiệu: often=> HTĐ

CT thì HTĐ: S + be + V3 (+ by Sb/ O)

6. All of this cheese was bought by her in France.

Dấu hiệu: bought=> QKĐ

CT thì QKĐ: CT: S + was/ were + V3 (+ by Sb/ O)

7. I wasn't invited by them to their New Year party.

Dấu hiệu: didn't invite=> QKĐ

CT thì QKĐ: CT: S + was/ were + V3 (+ by Sb/ O)

8. Mineral water are sold by them in plastic bottles.

Dấu hiệu: sell=> HTĐ

CT thì HTĐ: S + be + V3 (+ by Sb/ O)

9. The Imperial Academy is considered by people to be the first university in VietNam.

CT thì HTĐ: S + be + V3 (+ by Sb/ O)

10. Ha Long Bay was visited by us last summer.

Dấu hiệu: last summer=> QKĐ

CT thì QKĐ: S + was/ were + V3 (+ by Sb/ O)

11. A tree was cut by Jack yesterday.

Dấu hiệu: yeterday=> QKĐ

CT thì QKĐ: S + was/ were + V3 (+ by Sb/ O)

12. The town was destroyed by an eartquake.

Dấu hiệu: destroyed=> QKĐ

CT thì QKĐ: S + was/ were + V3 (+ by Sb/ O)

13. The letter wasn't type by him last night.

Dấu hiệu: last night=> QKĐ

CT thì QKĐ: S + was/ were + V3 (+ by Sb/ O)

14. I wasn't invited by them to the birthday party.

Dấu hiệu: didn't invite=> QKĐ

CT thì QKĐ: S + was/ were + V3 (+ by Sb/ O)

15. John's homework hasn't been finished by him

Dấu hiệu: hasn't finished=> HTHT

CT thì HTHT: S + have/ has + been + V3 (+ by Sb/ O)

16. A new suit has just been made by the tailor.

Dấu hiệu: has just made=> HTHT

CT thì HTHT: S + have/ has + been + V3 (+ by Sb/ O)