英语,has been和 had been

英语,has been和 had been has been 和 had been 的用法和差别 初中英语语法has been和had been的区别 had been 和 has/have been的区别是什么? has been和had been 有什么区别? 英语Has been to 和Has been in 怎么用? has/had been 跟has/had gone has gone,had gone,has been,had been 该怎么使用（搞乱了,特别是had和has） 句子中的has been ,have been,had been 代表什么? have been / has been / had been 的区别 have has had或 having +been 的区别和用法 has + done和had been V+ing区别