10. D。understand意为“了解”合乎文意，为正确答案。
5
Many people
think that Americans 1 their cars almost more than anything else.
When 2__ people are
fourteen years old, they want to have their __3_ cars. They don’t ask for a car from their
4__. So many of them
work in _5_ time during their last year of high
school to buy a car. Learning to 6 _ and getting a driver’s license
may be one of the most exciting things in a young person’s life.
Some people
almost 7 _ go to a doctor when they are ill.
But they will __8_ their
cars to a garage as soon as they think there is a 9 . On Saturdays or Sundays some
people may 10 most of their time washing and repairing
their cars.
