we began studying at the age of 8 at the school.这句话有什么错?

we began studying at the age of 8 at the school.这句话有什么错? we`re studying at school -----the yeay. 阅读答案Jenny began to go to school when she was at the age of s we`re studying at school -----the year.A.at B .for C.of Amy began ice _____ (skate) at the age of four. Little tom began (learn)French at the age of 5. at the age of the school at which we are studying is very good He began to work at the age of 12.at the age of 12.画线,对划线部分提 at the age of等于什么 at the age of什么意思? 一些关于介词的用法at the age of by the age of有什么区别