1)She was cooking when he called;he was dancing;I was doing my homework;I was watching tv;she was swimming;we were having lunch;we were writing a test;i was driving on the bike;she was eating a dinner;they were playing games;he was listening music;it was raining
2)можно те,которые в 1 ( was/were not + -ing)
3)what were you doing while i was eating?
were you listening music while he was talking?
was he reading a book while she was cooking?
what was he doing while i was playing computer games?
what were you doing while i was writing a letter?
were you walking in the park while i was sitting at home?
what was she doing while he was watching tv?
were you working all day?
was he doing his homework?
was she calling me?
were you swimming in the pool while i was sunbatheing?
what were you doing while she was reading a book?