1.A teacher should be a person that everyone can respect

2.If I collected a lot of shells on the beach I would give you some

3.people say that the policeman had saved many children from the fire

4.my sister often makes me do the washing up

5.the policeman allows all vehicles to go when traffic lights are green

6.everyone believes him right

7.we made her head of the class

8.they were carrying the injured player off the field

9.haven't you yet found out information about the trains to Hanoi

10.peter advised me not to sell this flat

11.he urged the government to pass the law

12.my classmates used to be call me john

13.mr.brown will appoint tom the director tomorrow

14.you should pay more attention to your study

15.he heard the bell ring

giúp mình với,tất cả đều là chuyển sang bị động nha