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  • 科目:英语
  • 题型:单选题
  • 难度:较易
  • 人气:551

. My pain ___________ obvious the moment I walked into the room, for the first man I met  asked me pitifully:" Are you feeling all right?"

A.must be B.must have been
C.could be D.could have been
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.MypainobviousthemomentIwalked