——Have you finished to work out the maths problem?——Not yet ,because I find it difficult.这里为什么是finished to work 而不是finished working 呢

是Have you finished already?还是Have you already finished? have you finished doing是什么意思 Have you finished your homework? -Have you finished your composition? You have hardly finished it,have you? —May I go to the movies tonight,mum?—You can when you______your homeworkA.will finish B.are finishing C.will have finished D.have finished Have you finished your homework -Yes.I——it last Have you finished your work?—No()A.not yet B.not untilCalreadyDnever You have finished the work,_____ you? Have you ______ my knife?A.finished upB.finished offC.finished inD.finished with 80.—Are you going to the movies tonight —Yes .By then I ________ my work .A .finished B .will finish C .finish D .will have finished ——Have you finished to work out the maths problem?——Not yet ,because I find it difficult.这里为什么是finished to work 而不是finished working 呢 —Will you go shopping now?—Not until I ____ my experiment.A．have finished B．will finish C．finished D．had finished选哪一个?为什么?请详解 , 英语单选请教—Will you go shopping now? —Not until I ____ my experiment. A．have finished B．will finish C．finished D．had finished 求解析 have you finished (read) the book yet Have you finished-----?already yet nearly have you finished doing有吗 he asked:have you finished your task.