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  • 科目:英语
  • 题型:单选题
  • 难度:较易
  • 人气:382

Some exercises appear to be ______ ones you have done, but on ______ second thoughts, you’ll find that they’re different.

A./; the B.the; / C.the; a D./; /
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Someexercisesappeartobeonesyou