1. Muscles (A)who are given (B)proper exercise (C)result to stimuli quickly and powerfully and are said to be in tone.

▶▷ <전치사 오류>-C, result in result 가 일으키다, 야기시키다의 의미로 쓰일 때 전치사 in을 동반한다.

2. Navigators on ships and aircraft use a compass to determine _________ they are heading.

(A) the direction in which
(B) to where the direction
(C) that direction of which
(D) where the direction

▶▷ <관계사 찾기>-A 주절의 동사 determine의 목적어와 함께 그것을 선행사로 받는 관계대명사를 찾는 문제. 관계사절의 동사 are heading과 선행사 the direction은 전치사 in으로 연결되어야 한다 (are heading in the drection). 관계대명사 대신 관계부사를 쓸 경우, 전치사는 쓸 필요가 없지만, 관계사는 여전히 선행사의 뒤에서 선행사를 수식한다. 따라서 (B)와 (D)는 답이 될 수 없다.

3. Of 120 (A)minerals known) to have been used (B)as gemstones, only about 25 are in (C)common use in (D)today jewelry.

▶▷ <어순 오류>-D, jewelry today.  today는 부사로 in common use를 수식하고 있으므로 jewelry 앞에 쓰지 않고 문장의 끝에 쓴다.

4. One of the thirteen original (A)state of the United States, North Carolina (B)lies on the Atlantic coast (C)midway between New York (D)and Florida.

▶▷ <명사 오류>-A, states thirteen의 수식을 받고 있으므로 복수형을 쓴다.

1. Muscles (A)who are given (B)proper >exercise (C)result to stimuli quickly and powerfully and are said to be >in tone.

2. Navigators on ships and aircraft use a compass to >determine _________ they are heading.

(A) the direction in which
(B) to where the >direction
(C) that direction of which
(D) where the direction

3. Of 120 (A)minerals known) to have been used >(B)as gemstones, only about 25 are in (C)common use in (D)today >jewelry.

4. One of the thirteen original (A)state of the >United States, North Carolina (B)lies on the Atlantic coast (C)midway >between New York (D)and Florida.