И напишите где какое время и если не трудно напишите почему

1. I went. 2. I was going. 3. What were you doing, I was playing. 4. I came, the children were standing. 5. We were playing. 6. I was preparing, I cut. 7. I went. 8. Did you go, I went. 9. What did you do, I translated. 10. I rang, he was sleeping. 11. My grandfather was watching, he fell. 12. My friend came, I was doin^r. 13. I was going, I met. 14. Nick rang, I was helping 15. The children were walking, they saw. 16. I came my siater was washing. 17. Mike was playing, he found 18. I was drawing, I broke. 19. I met, he was going. 20. I looked, the children were playing.