题目

By all _________, you must try every _________ to help him. A. mean, mean       B. means, means    C. means, mean      D. mean, means 答案:B 解析: means是一个单复数同形的名词,并且永远带有尾-s。换句话说,在表示“方式”、“方法”时,不存在mean这一形式(mean主要用作动词,表示“意思是”;也可用作名词,表示“中间”、“中庸”)。此题正确答案为C,by all means为习语,意为“一定”、“尽一切办法”。顺便说一句,means用作主语时,其谓语的数需根据句意来确定。比较: All possible means have been tried. 所有可能的办法都已经试过了。 Every possible means has been tried. 每种可能的办法都已经试过了。
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