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 Themachinehasbeenusedformanyears.It’snowonderthatitdoe...

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问题详情:

 Themachinehasbeenusedformanyears.It’snowonderthatitdoe...

 The machine has been used for man years. It’s no wonder that it doesn’t work well __________.

  A. regularly                B. constantly               C. frequently       D. occasionally

【回答】

D

知识点:副词

题型:选择题