Помогите с 5 и 6, дам 20 баллов. Заранее спасибо за ответ

Ответ:

5) 2. bought

3. was sleeping ... was listening

4. was cooking ... knocked

5. was watering ... started

6. walked

7. was eating ... were drinking

6) 2. was studying ... came

3. was reading ... left

4. was washing ... rang

5. was writing ... went