라울샘의 유튜브 식 TOEIC 해설 (No.450)

* 출처 : http://www.youtube.com/watch?v=MFZcXFZOlfk&feature=share 라울선생님의 토익점수의 제곱상승 토익 어휘 실전 (Vol.7) 89.토익 어휘 실전 문제 45회 450. In case that a customer who purchased one of our products is not fully satisfied ______ it, he or she is supposed to get reimbursement according to the policy . (A) at (B) to (C) by (D) with