1. The living room is clean everyday. (Thì HTĐ)

2. Some flowers in the garden have been picked by Hoa. (Thì HTHT)

3. All the Mongolian was defeated in 1990s. (Thì QKĐ) 

4. Her room had been tidied before her mother came home. (Thì QKHT)

5. An old bike is being repaired now. (Thì HTTD)

6. Was Nam helped do homework Y.T by Lan? (Thì QKĐ)

7. Has the dog just been fed? (Thì HTHT)

8. This computer is used everyday by Hung. (Thì HTĐ)

9. Are the tables moved away by these students? (Thì HTĐ)

10. Are flowers being arranged by Minh and Nam in the living room? (Thì HTTD)

11. These newspapers have been published. (Thì HTHT)

12. The bed is being made by her at present. (Thì HTTD)

13. All the crimes had been evacuated by the police before we arrived. (Thì QKHT)

14. Some new furniture has bought. (Thì HTHT)

15. Has the work been finished yet? (Thì HTHT)

16. Some bread is baked by Hoa in the bakery now. (Thì HTTD)

17. Are the eggs collected by Peter every afternoon? (Thì HTĐ)

18. Is a new school bag being looked for by you? (Thì HTTD)

19. Bamboo is used to make basket. (Thì HTĐ)

20. Has the tent been put up yet? (Thì HTHT)