127. Most senior managers approved the architect's proposal for the office laylout,
although _________ expressed concerns about the cost.
(A) one
(B) one another
(C) each other
(D) other
(ybm ets toeic 기출문제집 1000, 112p.)
※ one another과 each other은 주어 자리x 명사 수식 x 동사와 전치사의 목적어 o
we helped each other, for each other
