Ответ:
Задание 1.
а) 1. I played.
2. Tom played.
3. We helped.
4. Helen collected.
5. I collected.
6. Sister watched.
7. Brother danced.
8. Mary worked.
9. I watered.
10. He listened.
11. Sam cried.
b) 1. John came.
2. You came.
3. He went.
4. Mary and I went.
5. I got up.
6. She was.
7. We were.
8. Mother bought.
9. Father bought.
10. They read.
11. Tom had.
12. Olga gave.
Задание 2.
1. I didn't play football with my brother yesterday.
2. Tom didn't play hockey last summer.
3. They didn't help their father yesterday.
4. We didn't help our mother 2 days ago.
5. Hellen didn't collect stamps last summer.
Объяснение: