How to use "college" in a sentence

It was Monday, and the two friends were riding the walkway home from college

It was Monday, and Sala and Niki were at college again

The roof of the college was in pieces

Then I realized that the Martians could hit the top of Maybury Hill with their Heat-Ray because they had cleared the college out of the way.

More women were going to college and wanted to go out to work