Question

What were they doing? Check, (142). Example: Charles was reading while Sam was watching television.

Answer 1

Charles was swimming while Sam was singing.
Charles was putting food in the fridge while Sam was cooking.
Charles was painting while Sam was taking the dog for a walk.
Charles was writing while Sam was listening to music.
Charles was riding a horse while Sam was driving a car.
Charles was running while Sam was jumping over the vertical board.
Charles was watching a movie in the cinema while Sam was playing volleyball. 

Answer 2

2-Charles was swimming while Sam was singing.
3-Charles was buying products while Sam was cooking a meal.
4-Charles was painting while Sam was walking with a dog.
5-Charles was writing  while Sam was listening to music.
6-Charles was riding a horse while Sam was driving a car..
7-Charles was running while Sam was jumping.
8-Charles was watching the movie reading while Sam was playing with a ball.