分类：教育/科学-学习帮助
问题：Choosethecorrectanswer.1.Marylik 
1.Marylistalking_____thephone_____herfriends_____finishingherhomework.,to,afterB.on,with,afterC.on,to,sinceD.with,to,until2.Istheresomething_____thedoor?Canyougoandhavealook?onghindroughtween3.Thekidshavebeenplaying_____threehoursbutstilltheydon' rnce
回答：1.Mary lis talking _____ the phone _____ her friends _____ finishing her homework.  , to, after B.on, with, after C.on, to, since D.with, to, until 选B,固定搭配talk on the phone ,talk with sb. 而且当然是作完了作业在打电话聊天咯.2.Is there something _____ the door? Can you go and have a look?  ong  hind  rough  tween 这题接受楼下的意见,选B,开始我没看的太快了,没注意到B选项,所以就勉强挑了一个最顺的答案.没错,这题意思是说,门后面有什么东西吗,你能去看看吗?感谢指正!3.The kids have been playing _____ three hours but still they don't feel tired.  om  r  nce  选B,这个是个现在完成进行时,考虑for,since,而for + 一段时间,since + 时间点.所以选B.