18. If you went back to the mid-19th century, the cost of living would be 

                  one-twentieth of what it is today.

2번

(1) lesser than (2) less than

(3) still lesser than (4) fewer than

19. Wages and the cost of living 

                in virtually equal proportions through the generations.

(1) have grown (2) having grown

(3) growing (4) grows

1번

20. I imagined that he might have _______ a man drinking champagne in an illuminated swimming pool.

(1) resembled with (2) resembled

(3) resembled after (4) resembled to

2번

21. A desert is described as a region _______ an average of less than ten inches of rain in a year.
(1) during which (2) in which (3) which has (4) there is

1번 

22. Alaska found the first years of its statehood costly because it had to take over the expense of services _______ previously by the federal government.
(1) to provide (2) be provided (3) providing (4) provided

4번