Ответ:
Задание 1.
1. went
2. saw
3. helped
4. came
5. watched
6. took
7. went
Задание 2.
1. was
2. were
3. were
4. was
5. was
6. was
7. was
8. were
9. was
10. were
Задание 3.
1. His cats didn't drink milk yesterday. Did his cats drink milk yesterday?
2. You didn't get "5" at the last English lesson. Did you get "5" at the last English lesson?
3. Her classmate didn't play tennis last summer. Did her classmate play tennis last summer?
Хорошего дня! с: