Выберите правильные формы, чтобы завершить предложения. ( 35 ) 1.when my telephone (rang/was ringing), i (watched/was watching my favourite tv programme. 2.my friend and i (danced/were dancing) 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 desks. 5.john ( rode/was riding) in the park when he (saw/was seeing) his friend sam.