题目内容
13.The police ____the murderer everywhere when he suddenly appeared in a theatre.( )A. | is searching for | B. | were searching for | ||
C. | are searching for | D. | were searching |
分析 当他突然出现在剧院的时候,警察们正在到处搜索杀人犯.
解答 答案B.考查过去进行时.根据when he suddenly appeared in a theatre.表示过去,根据句意,他出现的时候,警察正在搜索杀人犯,用过去进行时,即was/were+doing.police一般总看作复数形式,用were.故选B.
点评 通过时间状语,上下句意思和具体语境来确定时态.形式为单数,但意义为复数这类集合名词包括cattle(牛,牲畜),people(人),police(警察)等,其用法特点为:只有单数形式,但却表示复数意义,用作主语时谓语常用复数.
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