waskn的知识精选

WhileI      anovel,someone     atthedoor.  A.read,waskn...
问题详情:WhileI      anovel,someone     atthedoor.  A.read,wasknocking               B.read,knockedC.wasreading,knocked.       D.wasreading,wasknocking【回答】C知识点:动词时态题...
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