【題目】My brother ________as an architect since he returned from America years ago.

A.has workedB.had workedC.workedD.was working

【答案】A

【解析】

句意:我哥哥多年前從美國(guó)回來后一直是個(gè)建筑師。

考查動(dòng)詞時(shí)態(tài)辨析。A項(xiàng)是現(xiàn)在完成時(shí)結(jié)構(gòu),B項(xiàng)是過去完成時(shí)結(jié)構(gòu),C項(xiàng)是動(dòng)詞過去式,D項(xiàng)是過去進(jìn)行時(shí)結(jié)構(gòu)。since自從,用來連接一段持續(xù)的時(shí)間,用于完成時(shí)態(tài)。根據(jù)下文“since he returned from America years ago自從他多年前從美國(guó)回來”可知主句需用現(xiàn)在完成時(shí),故選A。

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