将下列句子变为被动语态
问题描述：
将下列句子变为被动语态
1、I helped my mother
2、His mother gave him a present for his birthday
3、We find English very useful
4、I often hear him sing in his room
5、We are going to build a school in the small village
6、They speak English and French in Canada
7、The story made us lauge
8、They askde me to help them
答
1.My mother was helped by me.2.He was given a birthday present by his mother for his birthday.3.English is found very useful(by us).4.He is often heard by me singing in his room.5.A school that is goi...