Sales of CDs have greatly increased since the early 1990s, when people _______ t
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Sales of CDs have greatly increased since the early 1990s, when people _______ to enjoy the advantages of this new technology.A.begin | B.began | C.have begun | D.had begun |
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答案
B |
解析
此题考查since以及定语从句的时态照应。since加过去时间点,主句自然用完成时态。既然since跟的是过去的时间点,那么when指代的当然就是过去时间in the early 1990s,所以选过去式began。 |
举一反三
John,a friend of mine,who got married only last week,spent $3000 more than he _______ for the wedding.A.will plan | B.has planned | C.would plan | D.had planned |
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I would not have minded the difficulty of the work if the pay had not been so poor. I _______ the lowest wage of that time—two dollars an hour.A.paid | B.had paid | C.had been paid | D.was paid |
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Let’s keep to the point or we _______ any decisions.A.will never reach | B.have never reached | C.never reach | D.never reached |
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I _______ you not to move my dictionary—now I can’t find it.A.asked | B.ask | C.was asking | D.had asked |
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By the end of next month she _______ the small village for more than ten years.A.has been in | B.will have come to | C.has been lived in | D.will have been in |
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