have finished和had just finished什么意思

have finished和had just finished什么意思 “I have finished my homework.”我的作业已经完成.have been finished和had finished什么区别I have finished my homework能否写成I had finished my homework.意思有什么不同.嗯、、同义句是My home had been finished.还是My ho will do和will have done的区别例题：By the end of next year,they___the work on the new stadium.A.have finished B.will have finished C.will finish D had finished had finished是什么意思?和用法＞ i have finished my homework,为什麼不i had? they had finished 和they finished有什么区别?最好有专业的英语老师50. At the end of last month, they _____ thirty percent of the production plan. A、will finish B、have finished C、had finished D、finished选 ( ) you( ) your homework?yes,I finished it an hour ago.A did finish B have finished C.had finished 助动词,谓语动词助动词能做谓语动词么?比如 have,is ,was.After he had finished his homework ,he went home.比如句中的had 和 finished 都分别算哪种成分呢？ so far the students about 5000 treesA.have plantedB.had plantedC.plantedD.planthardly__he __the work when the Bell__A./,finished,rangB./,finshed,has rungC.had,finished,rangD.had,finished,had runghow long__you__the ditch?for 3 hoursA.have ,been diggin In the past ten years,they _three great scientific experimeent.A finished B have finishedC had finished D have been finished whether or not 和whether、、、、、 or not 的区别?怎么用,意思相同吗?比如whether or not i have finished my work 和whether had i finished my work or not We have finished the homework.这里的have 可不可以用 had 意思有什么变化吗? about 500 copies of the painting （） by the end of last monthA had finished B have finished C had been finished D have been finished拜托说明原因啊、 1.There I met several people,two of them _________ foreigners.A.being B.were C.are D.had been2.By the time they get here,we_____the workA.have finished B.had finished C.will have finished D.will finished Have you finished you composition already?yes,I ()it in twenty minutesHave you finished you composition already?Yes,I ( ) it in twenty minutes.A have finished B finished C will finish D had finished 请说明一下原因 couldn't have finished和 can't have finished 的区别 have you finished your homework yet?和 have you finished your homework?有什么区别? have finished to do和have finished doing有什么区别?