How long has the dog———(die)填been dead 还是dead?请说明

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How long has the dog———(die)填been dead 还是dead?请说明
How long has the dog———(die)
填been dead 还是dead?
请说明

How long has the dog———(die)填been dead 还是dead?请说明
been dead ,
how long 提问要求谓语动词用延续性动词,die的延续性动词就是been dead !

been dead

been dead
How long对一段时间提问,不能和瞬间性v连用,
die瞬间性v,要改为连续性v--be dead

been dead
只有这样才是延续性动词。。。