Where an action takes place
S + 在 + 地点 + 动词This pattern is used to talk about the place where an action is happening. It is often combined with location words such as 上 (above), 下 (below), 前 (front), 间 (between).
书在桌子上的。
The book is on the table.
他在大学的前面。
He is in front of the university.