Ten years later, the prisoner of war free and regained his .A. was set, freedomB. was set

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(答案→)A. was set, freedom
B. was set, free
C. was set, freely
D. set, freedom
解析：这题考查动词的被动语态和名词，战俘是被释放，用was set，第二空填freedom，名词：自由，句意是：10年后，这个战俘被释放，重新获得自由。选A。