in tenth grade

in tenth grade I'm in the tenth grade 和I'm in tenth grade.都对吗,有什么不同啊,谢谢 I'm in tenth grade.这里tenth前面为什么没有加the I live in New York.I am tenth grade in Senior High school.谁知 英语翻译In the tenth grade,I began volunteering at a veterinary （高一）十年级：I'm in tenth grade,前面为什么不加the 请详细说明理由. It's the tenth month in a in Grade 3中文 Are you in Grade he is a tenth grade student 为什么用序数词呢,不能用基数词吗 Ming is a tenth grade student who wants to be a professional Mike is the tenth grade student that wants to be a basketbal