Bob is twelve years old now.He is a ________ grade student.(

Bob is twelve years old now.He is a ________ grade student.( John is 14 years old. He is a student of Grade Eight. He was He is a of twelve years old 阅读选择：Bob is a Brirtish boy.He is eleven years old.Now he is He is twelve years old. He is twelve years old 提问 My sister is a student.she is twelve years old.合并为一句 快 、、、、明 l'm a new student here.my name is qina .l'm twelve years old He is twelve years old.改为同义句 He is a()boy . He is a _____ grade student. Jim is a primary school student, he’s in Grade Two now. He h 英语翻译I am twelve years old,and I am in Grade Six now.I have a