in tenth grade为什么序数词tenth前不加定冠词the

in tenth grade为什么序数词tenth前不加定冠词the he is a tenth grade student 为什么用序数词呢,不能用基数词吗为什么不用基数词呢 I'm in tenth grade.这里tenth前面为什么没有加the cover,contain,include有什么区别 I'm in the tenth grade 和I'm in tenth grade.都对吗,有什么不同啊,谢谢 （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. I live in New York.I am tenth grade in Senior High school.谁知道杂翻译? 英语翻译He tried his darnedest in every class and made tenth grade by the skin of his ass Mike is the tenth grade student that wants to be a basketball player是用the tenth 还是a tenth 就划线部分提问问题：We are in Grade One. （对in Grade One 提问）答案是：Which grade are you in?为什么陈述句里的”Grade”大写,而特殊疑问句中”grade”小写? It's the tenth month in a lt's the tenth month in a 八年级英语选择there are more students in Grade Two than?八年级英语选择there are more students in Grade Two thanA Grade One B in Grade One为什么非得加in,为什么不可以省略 one 、 two 、three、 five 、 nine 、 twenty -first tenth ninety-sixth的基数词或序数词老规矩 What grade are you in?I'm in first grade,first前为什么不加the呢? in Grade 3中文 The girl named Wendy in Grade _____ has won the reading competition.(eight) 请问这里怎么添,是不是The girl named Wendy in Grade _____ has won the reading competition.(eight) 请问这里怎么添,是不是 Grade后加序数词?并且是名 It's the ( )April.A:tenth of B:ten of C:tenth in what class/grade are you in?剧末为什么要跟上in?固定用法?