George and Betty didn’t have much money, but they wanted to buy a car. Betty didn’t have a  36  , so she was always finding ways to save money.
She  37   vegetables in her garden so that she wouldn’t have to buy any. She made sandwiches for George to  38   to work so that he wouldn’t have to buy his lunch.
Every day George took the bus to go to work and go home. It was not a long trip 39   the bus was slow because of the traffic.
One day, the traffic was even  40  than usual.
“I could run faster than this bus!” thought George.
The next day   41  work he decided to have a try. He went to the bus stop but didn’t take the bus. He ran along beside it on the sidewalk. He had to run quite fast to 42  the bus.
He arrived home. Betty was  43  to see him panting (喘氣). She was worried. “What’s the matter?” she asked.
“I ran along beside the bus,” said George. “I saved two dollars and fifty cents without paying the fare.” He thought it would make Betty   44 , but it didn’t.
“ 45   didn’t you run beside a taxi?” she said. “You would have saved six dollars!”