1.the fax arrived when she was talking on the phone.
2.when he was printing a timetable,the printer broke down.
3.the rain started when we were playing tennis.
4.my brother interrupted me when i was talking on the phone.
5.when i was reading a book,mum came home.
6.when they are driving to the countryside,they ran out of petrol.
7.when he was walking along the road,he saw a car crash.