---Has your father returned from Africa yet? ---Yes,but he_h

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---Has your father returned from Africa yet? ---Yes,but he_here for only three days before his
company sent him to Australia.
A.was B.has been C.will be D.would be
该题选择A.我的疑问是既然有 for+一段时间为什么不用完成时,为什么不选B
十分感谢~~~

回答的时态你为什么要去看问句?
答句有“before+点时间” 那就是一个很普通的一般过去时
再问：答句中有for only three days 这不是时间段吗？时间段不应用完成时吗？
再答：但是如果用完成时也要用过去完成时啊也不能是B 现在完成时啊从before可以看出来一定要过去的时间所以才只能选A啊
再问：如果有过去完成时，是不是可以选呢？过去完成时和一般现在时的答案不会一起出现吧？
再答：有过去完成时肯定选过去完成时

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