-----Do you know where Bob is?-----He has won a holiday for two people to New York.He _____ his mum.A.is taking B.have taken C.take D.takes为什么选A?选B有什么不行?

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-----Do you know where Bob is?-----He has won a holiday for two people to New York.He _____ his mum.A.is taking B.have taken C.take D.takes为什么选A?选B有什么不行?

-----Do you know where Bob is?-----He has won a holiday for two people to New York.He _____ his mum.A.is taking B.have taken C.take D.takes为什么选A?选B有什么不行?
-----Do you know where Bob is?
-----He has won a holiday for two people to New York.He _____ his mum.
A.is taking B.have taken C.take D.takes
为什么选A?选B有什么不行?

-----Do you know where Bob is?-----He has won a holiday for two people to New York.He _____ his mum.A.is taking B.have taken C.take D.takes为什么选A?选B有什么不行?
A.正确.现在进行时态可以表示将来.表示根据计划或安排在最近要进行的事情.具有这种语法功能的动词仅限于过渡性动词.常用的有:go,come,leave,start,arrive,return等.
  They are leaving for next month.B选项不能选,因为主语是He,不能用have

A可以表示一般将来时,其它的不能表示。
句中说鲍勃已经赢得了假期,他将带他的母亲一起去,需要用一般将来时,所以选A.

首先选A是因为该句可以翻译成,他打算带他得妈妈一起去(这个动作是即将要发生的),所以采用现在进行时来表示一个动作即将要发生更加适合,更加好!
谢谢~~~~

A是现在进行时,前面has won是现在完成时,选A的意思是带着他母亲正在度假进行中。