die的用法It's three years since his mother died.为什么不能用has died什么时候die又用完成时?

die的用法It's three years since his mother died.为什么不能用has died什么时候die又用完成时? 英语 几个短语的用法Generally speaking.die of/from.It`s the written word that.例句 die各种形式的用法 die of的用法 It's nothing的用法~ It's taken.的用法 “It's hard to die. 英语翻译This love (Yea,yea,yea)(I gotta holla about my girl full of ‘’mazing’) [note:amazing?](Yea,yea,yea) Let’s do it ch’allYea,it’s really taking me from high-lowLet’s see,where should I begin?The club on Friday night yoJust havi die的三个具体用法 请问die on的用法 It's three twenty的同意句It's three twenty还可以怎么样表达? It's three o'clock.有谁知道It's three o'clock.的意思!急快 It's high time...的用法 it's high time的用法? 请问it's high time 的用法 It's time+动词的用法急用 it's +形容词+to do的用法 it's four twenty-three