1) Are you in the third-year class?
你是读三年级吗?
2) What grade are you in?
你读几年级？
3) Is he in his first year?
他是在一年级吗?
4) He is in the third grade.
他读三年级。
5) Have you read it ?
你读了吗？
6) Are you?
你是吗?
参考词条