1. This flower is watered by my father every morning

2. Test-taking strategies should be learnt by students 

3. Photos of West Lake have been taken by July

4. The fire alarm is tested by the electricians weekly

5. Your cat wasn't bitten by my dog

6. The instructions for medical use carefully ought to be read by you

7. My motorbike has been repaired by the mechanic

8. A special dinner is going to be made by Sam

9. Who was this book written by?

10. The work will be finished by the team by 5.00 pm

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)