二胎时代女装:1 The doctor ___on th patient presently: he has yet prepared himself for the operation

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1 The doctor ___on th patient presently: he has yet prepared himself for the operation
a.is operating b.will operate c.has operated d.has been operating 详细说明
不是b

选A吧
presently是"现在",而后半句说已经准备了,那现在应该是正在手术

选B.
presently
1.一会儿。
2.[美]目前,现在。

选A的话,后半句的定语从句的补充说明就显得多余了。
选B.医生一会儿要给病人作手术。为了这个手术,他已经准备好了。

A 医生是现在正在跟病人说他已经做好了准备,而这个准备是他在跟病人说之前已经做好了是以前对现在的影响所以后用现在完成时,好好想想吧

选b
从后半句he has yet prepared himself for the operation(他已经做好了手术的准备)可以判断出答案的时态

a