most of _____ hadn't been cleaned for at least a year.(MET1990) ? A. those B. these ? C. that D. which ? 2 . The gentleman _____ you told me yesterday proved to be a thief. (上海 2000 春招) ? A .who B. about whom ? C.whom D.with whom ? ? 析:考例 1 中关系代词指代“窗子”,故用 which, 答案为 D ;? 考例 2 中关系代词指代人,故用 whom,它又和后面的 told 构成固定搭配 tell sb. about sb./sth. ,故答案为 B 。Р三、注意关系代词的替换? 1 .介词 in, on, at, for 等与关系代词 which 一起引导定语从句时,可与相关的关系副词 when, where, why 等替换。如: ? (1) America is the country in which e Washington was born. ? 美国是乔治•华盛顿出生的国家。(in which 用 where 替换) ? (2) I have forgotten the exact date on which this small country became independent. ? 我忘了这个国家独立的确切日期了。(on which 用 when 替换) ? (3)The reason for which he refused to go to the party was that they had not invited him to.? 他拒绝去赴宴的原因是他没受到他们的邀请。(for which 用 why 替换)