加the或者a等介词，前者表示特指。

比如一班，the class 1就用the修饰。如果说有个班级就用a比如 a little class一个小班级。

1. What is yourname 你的名字是什么 2. Where +be + 主语 + from或者Where +助动词(do/does)+主语+come from 某人来自于哪里 (回主语+be+地点)Where are you from=Where do you come from 回I am from Zhaoqing. =I come from Zhaoqing.

用in，in the Class 1，grade seven在七年级一班。