They have finished doing their homework(改写句子)Their homework_____ _____ _____.

They told me that they ___ the task yesterday.A finished B have finished C had finished D would finish这道题正确答案是哪个,请详细说明,谢谢! In the past ten years,they _three great scientific experimeent.A finished B have finishedC had finished D have been finished 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 They have all finished doing the exercises They must have finished their homework,_______. They have not finished counting 的译文 Why haven't they finished this work yet?They are supposed _______ it by Friday evening.A.to finish B.having finished C.finished D.to have finished选哪一个 They must have finished the work,---?A,mustn't they B,haven't they C,hadn't they D,didn't they 一道英语选择题,给我讲清楚They said they___the work by the end of last year.A.will finish b.would finishc.have finished d.had finished 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 they have finished a large part of the work andhe rest more difficultA,is B,are C,was D,were they havent finished their work.maybe they have some trouble___it.A.on B,at C in D with为什么是D ( )They have finished their homework,and_______.A So do we B So have we C Neither do we D Neither have we到底是A还是B？ I don't believe they have finished their work yet,have they 如何回答.Yes.,they ( ) They have already finished tgeir work改为一般疑问句 They have finished their work主动句改为被动句 They have already finished the work.如何改为否定句 they have finished their work last night改错