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To improve their oral English, everyone in the class is supposed to ______ actively in these discussions.

A.participate3 H$ b2 i4 j- @ I, O! a/ Z. d B.attend
! X( \3 J# Q% e+ J( Y
C.enter4 h! M& U% V9 A# V D.take3 @3 `# @: Y4 i( @

答案A

解析