i am done & i have done有什么区别?

i am done & i have done有什么区别? I have done和I am done有什么不同?都是done i have realized my mistake.i _____ what i have done.A ashamed of B am ashamed of C am ashamed by D am ashame of When did you do it? I ( ) it a moment ago.A.have done B.am doingC.done D.did I will lend you the book when I ( ) with it.A. have done B. am doing C. will have done D. do选哪个答案,并说明理由. I had done ,I have done ,I am done有何区别完成时,过去分词等全部都没学 i have been done和i am done有什么区别? 请问吃饱了是I am done.还是I have done. I have done so. There___so much work thant I have ___ now!A is,to do B am,do C are,done D have,been done i am done with it, I am done什么意思 I have not found my book yet; in fact ,I am not sure__I could have done with it .A whether B what c when D where there___so much work that I have got ___ A is ,to do B am,do C are,done D been,done 请问吃饱了是I am done.还是I have done.在电影中听到,但没区分出来. 请问高手这个答案是什么,为什么?I_my history lesson yesterday.Now I _all the work for today.A.was reviewing;have done B.reviewed;have done C.was reviewing;had done D.reviewed;am doing I’ll go to the library as soon as I finish what IA.was doing B.am doing C.have done D.had been doing everything i have done is