The engineer spoke highly of the government’s efforts, he owed his safe return from Libya.
A. through which
B. to which
C. with whom
D. for whom
网友回答
A. through which
(答案→)B. to which
C. with whom
D. for whom
解析：句意：这位工程师高度称赞政府的努力，他把他能从利比亚安全回来归功于政府。这里是定语从句，先行词是government’s efforts，owe…to把……归功于。与从句搭配的谓语动词搭配的介词是to，故选B。