have been written和have written有什么区别拜托各位了 3Q

have been written和have written有什么区别拜托各位了 3Q have just seen 和have already seen有什么区别呢拜托各位了 3Q have written,have been writting,have been written,had writte had written,was written,is written,have written有什么差别? I want to take a break和Have a rest 有什么区别和用法拜托各位了 3Q the written word和the written words,有什么区别 wrote,have written,had written,write的区别 would have written? How long have you____the bike?A.had B.been C.bought拜托各位了 3Q could have been 和may have been 有什么区别? many stories have been written about the exploration of the books have been written andschools of phylosophy founded.