It occurs when 2 years ago, is that it is the day that I was going to school and then I had to run fast to get to row. I ran without looking and then missed a stumbling, falling over in the midst of so many people.
It happened 2 years ago is that it was the day that I went to school late and at that time I was running fast to keep up the line. I could not look that way, and then you stumble into the midst of so many people.
It happened when 2 last year, that is, the day I went to school and then I ran quickly to line up in time. I ran not look on and then missed the fall among a lot of people.