7. A. cities　　　　　　 B. school　　　　 C. park　　　　　 D. gardens

6. A. busy　　　　　　　 B. some　　　　　 C. many　　　　 D. different

5. A. other　　　　　　 B. long　　　　　 C. short　　　　　 D. easy

4. A. bought　 　　　 B. used　　　　　 C. produced　　 D. sold

3. A. great　　　　　　 B. necessary　　 C. proper　　　　 D. possible

2. A. better　　　　　　 B. less　　　　　　 C. more　　　　　 D. farther

1. A. even　　　　　　　 B. much　　　　 C. little　　　　　 D. such

15. A。医生怀疑是吸烟和咖啡引起的，但他没有这些嗜好，所以他只好说他没办法。

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The United States is full of automobiles(机动车) .There are still many families without cars. But some families have two or 　1　 　more. However, cars are used for 　2　 　than pleasure. They are a　 　3　 　part of life.

　 Cars are 　4　 　for business. They are driven to offices and factories by workers who have no 　5　 　way to get to their jobs. When salesmen are sent to 　6　 　parts of the city, they have to drive in order to carry their products. Farmers have to drive into the city in order to get home.

　 Sometimes small children must be driven to 　7　 . In some cities school buses are used only when children live more than a mile from the school. When the children are 　8　 　young to walk that far, their mothers take 　9　 　to drive them to school One 　10　 　drives on Mondays, taking her children and the neighbours children as well. Another mother drives on Tuesdays, another on Wednesdays, and so on. This is called forming a car pool. Men also form car pools, with three or four men taking turns driving to the place 　11　 　they work.

　 More car pools should be formed in order to put 　12　 　motorcars on the road and to use less 　13　 . Parking is a great problem, and so is the traffic in and around cities. 　14　 　many cars are being driven,. Something will have to be done　 　15　 　the use of cars.

14. C。戒烟可表达为“stop smoking”或“give up smoking”。

13. B。想长寿，少喝咖啡。