Choose the right forms to complete the sentences.
1 When my telephone (rang/was ringing), I (watched/was watching) my favourite tv programme.
2 My friend and I (danced/were dansing ) while my sister (played/was playing) the piano
3 While Mr Brown (drove/was driving) home, his family (worked/were working) in the garden
4 When the lesson began, all the pupils (sat/were sitting) at their daesks.
5 John (rode/was riding) in the park when he (saw/ was seeing) his friend Sam.

1 When my telephone (rang), I (was watching) my favourite tv programme.2 My friend and I (were dancing ) while my sister (was playing) the piano.3 While Mr Brown (was driving) home, his family (were working) in the garden.4 When the lesson began, all the pupils (were sitting) at their dasks.5 John (was riding) in the park when he (saw) his friend Sam.