Помогите раскрыть скобки :
1.Yesterday evening at 8 my brother (to do) his lessons. 2. When I came home from school Kate (to plat) with her toys. 3. While I was reading David (to watch TV). 4. Before the lesson our teacher (to look) through our exercise books. 5. While the children were sleeping their parents (to decorate) the New Year tree. 6. When the bell rang the pupils (to write) down their homework.