i am in grade seven?复数是什么

i am in grade eight,not grade seven. I am in Grade Seven.对Geade Seven提问 i am in grade eight,not grade seven.那are you in geade seven 怎么把grade in seven am I连词成句 i am in grade one.(变成复数)-_________ I am in Class One Grade Seven改为一般疑问句和否定句 I’m a student in Grade Seven. I'm in Class Four ,Grade Seven . I am a Grade Seven student.（改为否定句） 根据括号里所给的汉语写出英语单词。 1. I am in ________ (班) Six, Grade Seven. I am in Grade Six.划线部分提问.Grade Six I am in Class Two,Grade