giúp  tớ ạ..............

1. He arrived with a friend who waited outside in the car.
2. The man whose mobile was ringing did not know what to do.
3. The car which the robbers escaped in was a BMW.
4. The woman whose daughter was crying tried to calm her down.
5. The postman who works in the village is very old.
6. The family whose car was stolen last week is the Smiths.
7. The cowboy who is wearing a red shirt looks very funny.
8. A bus is a big car which carries lots of people.
9. The volunteers, whose enthusiasm was obvious, finished the work quickly.
10. Children who like music are often good at mathematics.
11. The engineers who designed the building received an award.
12. The girl who recited the poem is my niece.
13. The townspeople, whose pride in their community is well-known, raised enough money to build a new town hall.
14. The Pacific Ocean, which might have been crossed by raft during the Stone Age, is the world’s largest ocean.
15. The newspaper to which we subscribe is delivered regularly.