Having tried hard several times they finally the hope of finding an effective way to sav

问题补充：

Having tried hard several times, they finally the hope of finding an effective way to save the dying man.

A. abandoned

B. released

C. discouraged

D. resigned

答案：

(答案→)A. abandoned

B. released

C. discouraged

D. resigned

解析：词义辨析. A.抛弃;放弃B. 释放;让与C. 阻止;使泄气D.辞职.句意:已经尝试了几次,他们最终放弃了寻找有效地方法救治这个将死的男人的希望.故选A.