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        1. 22.I upset when I failed the exam.A.may be B.used to C.use to be D.used to be 查看更多

           

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          I ______ upset when I failed the exam.
          [     ]
          A.may be
          B.used to
          C.use to be
          D.used to be

          查看答案和解析>>

          I ______ upset when I failed the exam.

          A.may be          B.used to          C.use to be             D.used to be

          查看答案和解析>>


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