My father___on business for two weeks.He'll return in 3 days.A:left B:has left C:has gone D:have been away为什么选D啊?

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My father___on business for two weeks.He'll return in 3 days.A:left B:has left C:has gone D:have been away为什么选D啊?
首先,根据中学英语教科书的知识,应知道,看到for要想到它代表的是一种持续中的状态,所以要选择完成时态.
然后,根据选项,b,c所给的动词,一个是leave,一个是go,都是瞬时性动词.不能用have/had+done的形式来表示一种持续的状态.
因此,选择d,它用be+表示状态的away,贴切的表示出句意所要求的意思.

因为其它几个都是瞬间动词，不能加一段时间，要把它改成一种状态，所以选D。这类的词还会有，DIE，STOP，BORROW等等啦！如果想要例题的话，发消息给我吧！~

left+on表示：在左边，，而且一般是用：left on the something
go+on表示：继续做某事
away+on表示：外出做某事

1. 确定时态，最简答方法，找到时间词。for two weeks,for表示完成时态，即我父亲已经去了两星期了。
2. 选择动词，原句意思是去那儿两周了，*去*是一个动作，不可能持续两周，所以两周应该表示*在那儿*那个状态，因此不能用left或gone这些实意动词，而应该用be动词，表示状态。...

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1. 确定时态，最简答方法，找到时间词。for two weeks,for表示完成时态，即我父亲已经去了两星期了。
2. 选择动词，原句意思是去那儿两周了，*去*是一个动作，不可能持续两周，所以两周应该表示*在那儿*那个状态，因此不能用left或gone这些实意动词，而应该用be动词，表示状态。

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