Past Simple and Past Continuous

Complete the sentences with the Past Simple or Past Continuous of the verbs in brackets.

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. Note that you will lose points if you ask for hints!
1. I (PLAY) the guitar when my brother (CALL) me.
2. Last night at 10 o'clock I (LISTEN) to some music in my bedroom.
3. His brother (SLEEP) when Peter (ENTER) the room.
4. Why (you / WATCH) TV when your mother (ARRIVE)?
5. Mary (FALL) and (BREAK) her wrist as she (CROSS) the road.
6. While my mother (COOK) dinner I (DO) my homework.
7. What (they / TALK) about when I (COME) in?
8. Your mother (WEAR) a yellow dress when I (SEE) her.
9. Peter and I (not HEAR) the phone because we (SING).
10. I (EXERCISE) in my bedroom when I (HEAR) a loud noise.