Tony ____ for the company as an engineer for two decades. Now he teachesmechani
题型：不详难度：来源：
Tony ____ for the company as an engineer for two decades. Now he teachesmechanics m Peking University.| A．has worked | B．worked | C．is working | D．had worked |
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答案
| B |
解析
试题分析：考查动词的时态。句义：唐妮在这个公司做工程师做了20 年，现在她在北京大学教力学。前句是说明她的过去的工作经历，后句是说明她现在的工作。所以前句应该用一般过去时，所以B正确。 |
举一反三
--- Did you telephone Uncle Sam our plan for the Christmas holidays on his farm?
--- Yes, he was happy about our arrival, and he eagerly asked when .| A．has we arrived | B．we had arrived | | C．were we arriving | D．we were arriving |
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It’s nice to see you again. What since we last met?| A．have you done | B．had you done | | C．have you been doing | D．did you do |
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--- How come your father can read books in German?
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| A．visits | B．will visit | C．is visiting | D．visited |
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—No, he ______ to town.| A．has been | B．has gone | C．goes | D．will go |
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