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  • 科目:英语
  • 题型:单选题
  • 难度:中等
  • 人气:955

-Hello, Mary! This is John. You must know why I _________ you.
-Oh, hello, John! I've waited for this call since last month.

A.called B.am calling C.was calling D.have called
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-Hello,Mary!ThisisJohn.Youmust