Nelson Mandela who had been _ for 27 years received the Nobel Prize Peace in 1993.A. in

问题补充：

Nelson Mandela, who had been _ for 27 years, received the Nobel Prize Peace in 1993.

A. in prison; for

B. put in prison; of

C. thrown into prison; to

D. sent to prison; in

答案：

(答案→)A. in prison; for

B. put in prison; of

C. thrown into prison; to

D. sent to prison; in

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