172 ГРАММАТИКА. СБОРНИК УПРАЖНЕНИЙ I still (to laugh) when we came to school. After school I (to tell) this story at home. My father and mother (to like) it very much. 13. When we were in the country last summer, I (to go) to the woods one day. In the woods I (to find) a little fox cub. It could not run. It (to injure) its leg. I (to decide) to help the cub. I (to bring) it home. Every day I (to feed) it and (to take) care of it. I (to do) it the whole summer. Now the fox cub is quite well. It (to leave) my house. It lives in the woods again.

Past Simple vs. Past Continuous

Past Simple используется для обозначения действий, которые произошли в прошлом и завершились.
Past Continuous используется для обозначения длительных действий в прошлом.

Решение:

1. I still was laughing when we came to school. (Past Continuous, т.к. действие длилось в момент другого действия)
2. After school I told this story at home. (Past Simple, т.к. завершённое действие)
3. My father and mother liked it very much. (Past Simple, т.к. состояние в прошлом)
4. When we were in the country last summer, I went to the woods one day. (Past Simple, т.к. разовое действие)
5. In the woods I found a little fox cub. (Past Simple, т.к. разовое действие)
6. It could not run. It had injured its leg. (Past Perfect, т.к. действие произошло до другого действия в прошлом)
7. I decided to help the cub. (Past Simple, т.к. разовое действие)
8. I brought it home. (Past Simple, т.к. разовое действие)
9. Every day I fed it and took care of it. (Past Simple, т.к. повторяющиеся действия в прошлом)
10. I did it the whole summer. (Past Simple, т.к. действие, происходившее в течение лета)
11. Now the fox cub is quite well. It left my house. (Past Simple, т.к. завершённое действие)
12. It lives in the woods again. (Present Simple, т.к. факт в настоящем)

Ответ: 1. was laughing, 2. told, 3. liked, 4. went, 5. found, 6. had injured, 7. decided, 8. brought, 9. fed, took, 10. did, 11. left.