4
1 was swimming, started
2 phoned, were playing
3 was walking, saw
4 Jim's mum bought his birthday present, while he was playing tennis at the club.
5 was watching, took
6 were flying, came
7 was making, was talking, was cleaning, were playing
8 was doing, arrived
5
1 I watched it with my family.
2 We danced, ate and drank.
3 We lay on the beach every day.