Chuyển từ câu chủ động sang câu bị động :
1. How does Hoa have to do all the housework ?
2. I shall choose him for the main character of the play .
3. Peter and Tom are going to buy new fishing rods .
4. We cannot see UFOs in real life .
5. We ought not to plant it , this big tree , in our small garden .
6. Will you ask her to be here with us ?
7. Do you have to sweep the room yourself ?
8. Where might he repair his car ?