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  • 科目:英语
  • 题型:单选题
  • 难度:容易
  • 人气:306

-It was the headmaster, Tony. You______hello to him.
-Sorry. I didn't notice him.

A.must say B.should say
C.must have said D.should have said
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-Itwastheheadmaster,Tony.Youhe