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Play,oftenasanactivityforyoungerchildren,isstillimportantinthesocialdevelopmentofteenagers.A.toseeB.seeingC.seenD.tobeseen

题目详情
Play, often ______ as an activity for younger children, is still important in the social development of teenagers.
A.to see B.seeing C.seen D.to be seen
▼优质解答
答案和解析
C