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英语试卷,完形填空题Even though the majority of Americans would find i

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英语试卷,完形填空题
Even though the majority of Americans would find it hard to imagine what life could be like without a car, some have ______ (1) to realize that the automobile is a mixed blessing. Traffic accidents are increasing _______ (2), and large cities are _______ (3) by too many automobiles. Worst of all, perhaps, _______ (4) the air pollution caused _______ (5) the internal-combustion engine. Every car engine burns ______ (6) gallons of fuel each year and pumps gases _____ (7) the air. These gases are one ______ (8) of the smog that hangs over large cities. Some of these gases are _______ (9) and dangerous ______ (10) health, especially for someone with a weak heart or a respiratory disease.
1. a. begin b. began c. begun d. to begin
2. a. steadily b. easily c. urgently d. generously
3. a. caused b. filled c. crowded d. troubled
4. a. are b. is c. being d. to be
5. a. with b. of c. by d. for
6. a. hundreds of b. hundred of c. hundred d. hundreds
7. a. over b. into c. in d. up to
8. a. resource b. origin c. source d. result
9. a. poisonous b. poison c. poisoning d. poisoned
10. a for b. about c. of d. to
英语试卷,完形填空题Even though the majority of Americans would find i
1C 2A 3C 4B 5C 6A 7B 8C 9A 10D