单选题 Whenever we (hear of) a natural disaster, (even) in a distant part of the world, we feel (sympathy) for the people (to have affected).

【正确答案】 D

【答案解析】to have affected 改为 who have been affected 或 affected。to have affected是不定式的完成式，表示主动，这儿应当表示被动，所以应改为用被动语态的定语从句，或表示被动的过去分词。