（有的可以变被动语态)
问题描述：
（有的可以变被动语态)
1.People use keys to lock doors.
2.DO you grow rice in your hometown?
3.What did he give his parents?
4.My mother makes me a cake every Sunday.
5.We'll know where we will come next time.
6.He uses his large birds to fish every day.
答
1.Keys are used to lock doors by people.
2.Is rice grown by you in your hometown?
3.What was given to his parents by him?
4.A cake is made for me by my mother every Sunday.
5.Where we will come will be known by us next time.
6.His large birds are used to fish by him every day.
个人浅见!