Объяснение:
1 He was watching TV when she called.
2 She was listening to my iPod, so She didn't hear the fire alarm.
3 Yesterday at this time, I was sitting at my desk at work.
4 I was studying while He was making dinner.
5 When the phone rang, She was writing a letter.
6 He was drinking coffee when I arrived.
7 You were studying chemistry all day yesterday.
8 John was reading an English book while Mary was watching TV.
