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

发布时间:2020-08-16 12:28:00


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

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A. Been
(答案→)B. Being
C. To be
D. Be
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