题目内容
【题目】 The poor dog _________________ three years ago. It has been _________________ for three years.
A. dead;died B. dying;dead
C. died;dead D. died;died
【答案】C
【解析】本题用寻找题眼法。由three years ago可知,句中的动词应用过去式,排除A、B选项。由for three years可知,句中的动词应用延续性动词,只有be dead适合,故选C。
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