[填空题]Kathy was a university student. Like most students she had very little money, but she wanted to buy a car. "If I can buy one really cheap that works," she thought, "I will save money on bus{{U}} (36) {{/U}}. Then I’ll have mom to spend on{{U}} (37) {{/U}}." She spent a day looking at cars in the{{U}} (38) {{/U}}car stores. Most of them were much too expensive for her to{{U}} (39) {{/U}}, but at last she found one for $250. The car was rather used and the paint was badly{{U}} (40) {{/U}}, but it worked. "It’s got a good engine," the salesman said, "and the gear box is O.K. Forget everything else." Kathy bought the car and drove it out of the car yard. Everything was wrong with it except for the engine and gear box, which worked very well. "As long as they work," Kathy thought, "nothing else{{U}} (41) {{/U}}. The salesman was right." {{U}} (42) {{/U}}, a few days later, while she was driving to her university, a police car drove up