"was dead" "is dead" 区别还是不太明..Thanks

was dead is dead 区别还是不太明..Thanks dead Dead Dead. Dead She Was Dead 歌词 I was dead tired I was half dead 为什么是she is dead而不是she was deat字打错了 是dead looks as if he was dead 和he looks as if he is dead的区别. My mother is dead Past is Dead 歌词 person is dead Alice is dead 音乐 grunge is not dead Wish I Was Dead 歌词 When the doctors arrived,the old man ( ) A.is dying B.was dead C.had been dead D.has been dead为什么选c 而不是d 选择题when the doctors arrived,the old man[ ]A.is dying B.was dead C.had been dead D.has been dead选择并说明,谢谢