29.He believed that the greatest of his ______ was that he'd never had a college education. 
   A. griefs   B. misfortunes   C. disasters   D. sorrows
<grief>
grief  悲伤
brief  简洁
relief  缓解
bleary  模糊的
blight  使枯萎
</grief>
<misfortune>
misfortune  不幸、灾祸
</misfortune>
<disaster>
disaster  灾难
</disaster>
<sorrow>
sorrow  悲伤、悲痛、懊丧
sorry  遗憾的
sob  哭泣
subtle  敏锐的、敏感的
</sorrow>