Jack is ten years old and he is a very lazy boy. He doesn’t like doing any work. He has to go to school, of course. But he doesn’t s      hard there and doesn't do any work. His father and mother are b     doctors and they hope their son will become a doctor too when he g     up. One day, Jack says to his mother, “When I finish school, I want to be a cleaner.” “A cleaner?” his mother asks. She is surprised. “That’s not a good job. W    do you want to be a cleaner?” “Because I will only have to work one day a w     ,” Jack answers. “Only one day a week?” his mother says, “What do you mean? And h    do you know it?” “Well,” Jack answers, “I think the cleaners come to work on T    every week. I o   see them on that day.” His mother l   and says, “They go to work on Monday, Wednesday, Thursday and Friday in other     .”