A:I have finished my homework B:when did you finish it上面A的用现在完成时,为什么下面B用一般过去式呢?而不是现在完成时呢?

I have a ( ) finished my work如题,填空. 32、I have finished my homework,Mom.May I st32、I have finished my homework,Mom.May I stop ________ (have) a rest? I have finished my homework.反义疑问句 I（）my homework at seven o`clockI （）my homework at seven o`clock A finished B have finished Have you ______ my knife?A.finished upB.finished offC.finished inD.finished with I'll help you when I ___ my work.2.I'll help you when I my work.A.finished B.will finish C.will have finished D.have finished I have already finished my homework.(变否定句) I _____ finished my homework ______. I have finished my homework.和“I finished my homework.有区别吗? I have finished my homework.可否这么说 I finished my homework.为什么 as soon as ___ my homework ,i'll have a hot bathi finished doing 可以吗 i have finished my homework,为什麼不i had? I have finished my homework before I ______(leave). I have finished my home WORK .对 finished my home WORK.进行提问?该怎么说 I have finished my school work already 改为一般疑问句 I have finished my homework.变被动语态 I have finished my homework this morning.改为否定句 I have just finished my homework.（变为疑问句） I have already finished my homework(改为否定句）