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
2
19. 1번
20. 2번
21. 3번
빈칸 뒤에 불완전한 절이 왔으니, 뒤에 완전한 절을 동반해야 하는 '전치사 + 관계대명사' 형태인 1번과 2번은 정답이 될 수 없고, 선행사 a region이 단수 사물이고, 관계절의 주어 역할('그 지역'이 평균 강수량을 보유하고 있다)을 하고 있으므로 주격 관계대명사 which와 관계절의 동사를 선행사(a region)에 수 일치 시킨 has가 함께 쓰인 which has가 정답인 것 같네요.
22. 4번