when i have done that ,i shall have done all i was supposed to do请问这里为什么用将来完成时

求帮我解释下这段英文When minutes become hours When days become years And I don't know where you are Color seems so dull without you Have we lost our minds What have we done But it all doesn't seem to matter anymore When you kissed me on tha I have done so. 31、When I read a book,I like make a mark _____ I have any questions.A、at which B、at where C、thA,对吗.最好说明原因 When did you do it? I ( ) it a moment ago.A.have done B.am doingC.done D.did when i have done that ,i shall have done all i was supposed to do请问这里为什么用将来完成时 翻译Tha is all I have told you today. everything i have done is 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. have done……when 的句型? have done的用法要例句I have done。 一道新世纪的题目英语 急1 I have done my homework.When _______ you _____it?A did did B did do C have done D would do i am done & i have done有什么区别? Directions:There are 10 blanks in the following passage.One of the most enjoyable jobs I’ve ever done was when I was a student.When you hear what it was you may be a bit shocked,but _____66__________ I know it sounds unpleasant,I can assure you tha I've done my homework When ____ you _____ it A.did ;did B.did;do C.have ;done D.would;do要原因 会英语的帮帮忙,几道语法题,1THE radio of the work done by the machine______the work done on it is called the efficiency of the machine.A against B with C to D for2 Once more I have to leave Beijing,____I have been living for 8 years .A tha 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 what i have done的歌词翻译 《what i have done》的中文翻译