完形填空。 I have been seeing more and more patients who want to run away from city life, air pollution, and illnesses which they suspect (怀疑) 1 from polluted environments and bad food. One professional man, for example, 2 that he and his wife had moved to a suburban community and drove to work over the 3 20 years-they went to separate places and drove two cars. They were driving to a city 4 grew out to meet them. The population grew larger. When they started driving, his journey 5 less than 30 minutes; 20 years later, the trip each way had 60 minutes on average; sometimes,when the traffic 6 bad, they each 7 90 minutes or more in the car, one-way. Both had become progressively ill. Both decided they 8 to a small town and never drive again. The decision 9 drive one or more cars every day, long distances 10 may have been a common one 11 working people in North America in the last 40 years. Cities 12 larger. The development of suburbs often placed homes 13 work places; massive road construction encouraged people 14 cars. It was clear to this couple(夫妇) that 15 had been a terrible mistake and they should stop driving to work. (     )1.A. go (     )2.A. explained (     )3.A. other (     )4.A. that (     )5.A. took (     )6.A. were (     )7.A. took (     )8.A. moved (     )9.A. for (     )10.A. to drive (     )11.A. between (     )12.A. were (     )13.A. near (     )14.A. to drive (     )15.A. there B. return B. told B. passing B. who B. spent B. was B. cost B. moves B. to B. driving B. during B. turned B. next to B. driving B. they C. cause C. complained C. past C. where C. cost C. had C. went C. has been moving C. with C. working C. among C. grew C. far from C. drive C. one D. come D. worried D. following D. it D. went D. would be D. spent D. would move D. of D. to work D. against D. looked D. far away D. would drive D. it