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21£®I am        captain of the class team at school and I am also       member of the Senior

      High team£®

      A£®the, a                         B£®a, a                     C£®/£¬the                           D£®/£¬a

22£®—You’ve left the light on£®

    —Oh£¬so I have£®          and rum it off£®

    A£®I’ll go                 B£®I’ve gone             C£®I go                              D£®I’m going