问题 选择题

Henry works as a teacher now, but he ______ on a farm for three years.

A.has worked

B.had worked

C.worked

D.had been working

答案

答案:C

考查时态的运用。句意:Henry现在是一位老师,但他曾在农场工作过三年。

点评:要善于确定句子时态,可以通过时间状语确定,还可以根据上下文来确定.但不能断章取义,要认真看清题意,像本题,单只从时间状语for three years 上看,这道题容易选A。

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