3. The owner of the house is aboard, that what they think
4. Vứt dấu chấm giữa câu thay "Which" vào
5. If he were more careful, he wouldn't lose his money.
6. The thief is believed that have got in the bank through the back window.
7. She is believed by many people that she is a honest person.
8. The building have been badly damaged by the fire.
9. He is said that have been traveled all over the world.
10. It was my parents who gave me the fish tank on my birthday (có thể sai vì mình không biết vertical phase là gì)

Còn lại khó với lười quá nên mình không làm được mình mới lớp 9 =))) 
Câu 1 câu 2 bị che