这个英语错在哪儿i have been teaching here for 30 years when you graduate from this university

这个英语错在哪儿i have been teaching here for 30 years when you graduate from this university I have been to… 英语作文 where have you been I have been to Australian 这个句where have you beenI have been to Australian i have been a perfect ass 如果是 have i been a perfect ass 这个 i 和 have I have been interested in music ever since I was a small child.这个句子是不是错?为什么用have been是不是把 have been interested 改为have interested. By the time you arrive this evening,____ for two hours.A.I will studyB.I will have been studiedC.I had studiedD.I will have been studyingB和D区别在哪儿啊？ I have been selling I have been trying I have ever been I too have been I have been to. I have been I have been in. i have never been abroad before 这个before是什么词性 英语作文：The best place I have ever been to 英语:have been I hope you didn't have a sweet tooth 错在哪儿? 英语的过去分词与过去式有什么区别回答完可以帮我回答下面的问题吗?下面的句子中哪一个对 为什么对?I have been saw it.I have been see it.I had been saw it.I had been see it.上面对的句子与I saw it.这个