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26._______a nurse,she knew how to take care of a patient.　A.Been B.Being C.To be D.Be

分类: 作业答案 • 2022-01-23 11:01:45

问题描述：

26._______a nurse,she knew how to take care of a patient.　A.Been B.Being C.To be D.Be

答

B能说明原因吗？谢谢！be动词与主语she为主动关系