Question

I am Class 1 Grade 7这样写对吗？

Answer 1

加个in吧 in class1 grade1

Answer 2

建议把阿拉伯数字改成英语单词。

He's English and he's in Class One.  

他是英国人，他在一班。

in Class One Grade Seven: 在七年级一班

We are in Class One, Grade Seven. 

我们在七年级一班。

Sam is more serious than any girl in Class One Grade Eight.  

在八年级一班萨姆比任何女孩都高。

We are studying in Class One, Grade Two in No. One Middle School in Tianjin. 

我们在天津第一中学二年级一班学习。