After the meal I went back across the road. While across the street, I saw that the door to the side of the school is to be closed down. I crossed the street and rushing to return to the school, just before the doors closed.
After the meal I went back across the street. While crossing the road, I saw that the side door of the school was closed down. I rushed to cross the road and go into schools to catch up before the doors closed.
After the meal I cross the road. While crossing the street, I saw that the side door of the school will be closing. I hurried to cross the road and back into the school before the door closed.