Jack doesn’t smoke now, but he _______ for almost twenty years.A．was smokingB．ha
题型：不详难度：来源：
Jack doesn’t smoke now, but he _______ for almost twenty years.| A．was smoking | B．had smoked | C．has smoked | D．smoked |
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答案
| D |
解析
试题分析：考查时态，由后面的时间状语for almost twenty years，可以知道是一般过去式，句子意思“杰克现在不吸烟了，但是他吸烟将近20年”
点评：做时态题时，首先看时间状语，由时间状语判断时态；如果没有时间状语，从句子暗含的意思来判断句子时态 |
举一反三
Would you please keep silent? The news that the milk contains a harmful chemical______ and I want to listen.| A．has been broadcast | B．is broadcast | | C．is being broadcast | D．is broadcasting |
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He______on the farm for twenty years and now he is a teacher.| A．has worked | B．had worked | C．worked | D．works |
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— Have you graduated from collage?
— Yes, ________.| A．I studied French for two years. | B．I have been studying French. | | C．I have studied French for two years. | D．I had studied French for two years. |
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— Have you got any job offers?
— No. I ______.| A．waited | B．was waiting | C．have waited | D．am waiting |
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—What ______ when the earthquake happened on May 12th ?
—Er, I was having a geography class in the classroom.
A. are you doing B. did you do C. were you doing D will you do |
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