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It'snecessaryforyou       theclassroomclean,class.A.kee...
  • It'snecessaryforyou       theclassroomclean,class.A.kee...

  • 问题详情:It'snecessaryforyou       theclassroomclean,class.A.keep   B.keeping   C.tokeep【回答】C【解析】句意:同学们,保持教室干净对你们来说是必要的。keep动词,保持。本句为固定句型It’s+形容词+forsb.+todosth.,意为“做某事对某人而言是怎样的”。其...
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