past simple or continuous

Gap-fill exercise
By Juan Ignacio Montorio

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. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!

1. She (read) a book when her mobile (ring).
2. (you/have) lunch when someone (steal) your bag?
3. I (have) an idea while I (do) my homework.
4. They (not see) anyone while they (walk) to the cinema.
5. (he /eat) anything while he (wait) for us?