This memorial was built those heroes who laid down their lives for the liberation of the

问题补充：

This memorial was built those heroes who laid down their lives for the liberation of

the black.

A. in memory of

B. in the honor of

C. in favor of

D. in search of

答案：

(答案→)A. in memory of

B. in the honor of

C. in favor of

D. in search of

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