a rule, they are paid ______.”
a. a. by an your b. by the hour c. by a hour d. by hours
55. 55.The DMZ extends about two hundred kilometers ______.
a. from east to west b. from the east to west
c. from the east to the west d. from eastern to western
56. 56.What ______ are you planning to buy?
a. a. make of car b. make of the car c. make of a car d. make of cars
57. 57.______,you can’t fool her.
a. a. The child though Rowena is b. Though child Rowena is
b. b. As child Rowena is d. Child as Rowena is
58. 58.What’s ______ is to get information about the situation first.
a. a. the wisest b. a wisest c. the wiser d. wisest
59. 59.The differences between ______ are gradually being eliminated.
a. a. the town and the country b. town and country
b. b. a town and a country d. a town and the country
60. 60.Scientists hope to send an expedition to Mars during ______.
a. the 1990s b. the 1990 c. 1990s d. 1990’s

2.8 数词练习
1. 1.______ martyrs have heroically laid down their lives for the people.
a. Thousand upon thousand of b. Thousand and thousands of
c. Thousands upon thousands of d. Thousand and thousand of
2. 2.They received ______ of letters about their TV programs.
a. dozen b. dozen and dozen c score d. dozens
3. 3.Who is that man,______ in the front row?
a. one b. the one c. first d. the first
4. 4.We have produced ______ this year as we did in 1993.
a. as much cotton twice b. as twice much cotton
c. much as twice cotton d. twice as much cotton
5. 5.The earth is about ______ as the moon.
a. as fifty time big b. fifty times as big c. as big fifty time d. fifty as times big
6. 6.The population of many Alaskan cities has ______ in the past three years.
a. more than doubled b. more doubled than c. much than doubled d. much doubled than
7. 7.The moon is about _____ in diameter as diameter as the earth.
a. one-three as large b. one three as large c. one-third as large d. one third as large
8. 8.Five hundred yuan a month _____ enough to live on.
a. is b. are c. is being d. has been
9. 9.______ of the buildings were ruined.
a. Three fourth b. Three four c. Three-fourths d. Three-four
10. 10.Consult _____ for questions about earthquakes.
a. the six index b. index six c. sixth index d. index numbering six
11. 11.She went to the countryside ______.
a. a. in the morning at nine/on June first,1968 b. on June first,1968/in the morning at nine
b. b. at nine in the morning/on June first,1968 d. on June first,1968/at nine in the morning□本□作□品□由□□網□友□整□理□上□傳□
12. 12.Three-fourths of the surface of the earth ______ covered with water.
a. are b. is c. were d. be
13. 13.This month the production of stainless steel in our steelworks has increased ______ 2,000 tons.
a. a. with b. in c. on d. by
14. 14.With the miniaturization of the structural components the weight of these electric devices has decreased ________ 30 percent.
a. as b. with c. in d. by
15. 15.The Olympic Games are held ______.
a. a. every four years b. every four year c. every fourth years d. every four-years
16. 16.As he is not in good health, he goes to his factory only ______ just to learn something about the progress of experiment.
a. a. once a week b. one week c. one time a week d. one a week
17. 17.Three students ______ in this university come from the South.
a. of ten b. out of in ten c. out of ten d. in tens
18. 18.Strings of the same thickness made of nylon are ______.
a. a. five times stronger than those b. five time stronger than those
b. b. five times strong than those d. five times stronger as those
19.the wheels of the old wagon are nearly ______ those of a modern car.
a. a. twice the size of b. twice size of c. twice sizes