Turn the following sentences into the active voice.
1. These exercises were done well.
2. This dress must be washed in cold water.
3. No mistakes have been made in his composition.
4. His painting will be exhibited for the first time by New Arts gallery.
5. This house was built 100 years ago.
6. These artificial flowers are made of silk.
7. The lessons are being written by the students now.
8. This job has to be done at once.
9. These animals at the zoo are fed twice a day.
10. The operation is going to be performed by French doctors.
11. All the arrangements have been made.
12. When was this radio manufactured?
13. They couldn’t be found anywhere.
14. Is mathematics taught in this school?
15. Fortunately the machinery wasn’t damaged by the accident.
16. Please wait here while your luggage is being examined.
17. How are candles made?
18. For a long time the earth was believed to be flat.
19. Were you taught how to apply this theory by your teacher?
20. Apples are said to be good for our health.
21. Don’t let the dog be teased by the children.
22. It is believed that red is the symbol of luck.
23. What have been done to help the poor in this city?
24. The jewelry must have been stolen while she was out.
25. Where did the treasure use to be hidden by pirates in the old time?
nhờ các bạn làm giúp mình ạ mình đang cần gấp
1. They caused another accident on this road this afternoon.
2. Tom's parents bought him a new bike yesterday afternoon.
3. The manager didn't phone the secretary this morning.
4. Did Mary buy this beautiful dress?
5. Which pictures did you choose to send your sister on her birthday?