Giải

1. This flower is watered by my father every morning

2. The dinner is prepared in the kitchen by her mother

3. Our teeth should be cleaned twice a day

4. The house needs to be repainted their house before Tet

5. Fiona was invited to John's birthday party by John last night

6. The engine have to be repaired of the car

7. These old pictures won't be hung in the living room by me

8. Has the most valuable painting been stolen in the national museum by the thieves?

9. They were told this story by their grandmother when they visited her last week

10. We had been taken this photograph by a man when we were on holiday last summer

QKĐ: S + was/ were + PP + (by O)

HTĐ: S + am/ is/ are + PP + (by O)

HTTD: S + am/ is/ are + being + PP + (by O)

HTHT: S + have/ has + been + PP+ (by O)

TLĐ: S + will be + PP + (by O)

TLG: S + is/ am/ are + going to + be + PP + (by O)

S + modal verb (should, must, have to, can,...) + be + PP + (by O)