Past S.
1.I went to school yesterday
2.I visited my friend a week ago
3.I said them it an hour ago
4.He ate cheeseburger last Sunday
5.I felt a stomachache last week
Past C.
1.I was working all day yesterday
2.I was swimming in the pool from 5 till 7 p.m
3.He was playing football the whole evening
4.I was playing computer games at 5 o'clock
5.I was sleeping at noon
Past P.
1.He had worked by Sunday
2.By the end of the year he had came from America
3.I had bought a book by the 15th of March
4.He had been ill for several days
5.He had hardly gone to bed when she came