Open the brackets.
1. When the bell rang, the children (to run) into the classroom and (to take) their seats.
2. When I opened the door, the lesson (to begin) and the teacher (to explain) something to the class.
3. Before we (to take) the boy to the theatre, he (never, to see) a play.
4. I (to clean) the carpet when the dog (to come) and (to shake) himself.
5. By the time we (to arrive), the party (to finish).
6. – What you (to do) when I (to call) you? – I (to cook).
7. When I (to get) to the playground, my friend already (to leave).
8. We (to have) a good long holiday after we (to do) all the work.

Write what these people were doing at the definite time in the past.
1. Yesterday evening at 8 my brother (to do) his lessons.
2. When I came home from school Kate (to play) 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.