The engineer spoke highly of the government’s efforts, ____ he owed his safe ret

题干

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

上一题下一题 0.64难度单项选择更新时间:2013-05-08 01:15:52

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