1.They were able to operate from across the border.为什么有两个介词用在一起?2.within slight 3.skin deep是肤浅的意思,但deep不是深的意思吗,怎么翻译那么怪的?

it was thirty years until they were able to reunite 能代替 it was thirty years before they were吗 were able to have done they will be able ,as it were,to see and hear us in action.in Only in that way( )find out how this kind of animal lived and then finished the research on time.A. could they B. they could C. were they able to D. they were able to They weren't able to come because they were so busy at two hours ago .这句话有没有问题 英语翻译逻辑好像有点说不清啊1.They started late but the ____ get there in time.A could B can C were able to D may Only in that way _____ find out how this kind of animal lived and then finished the research on timA.could theyB.they couldC.were they able to D.they were able to 选哪个?为什么? were you able to keep them?翻译 In the end they were able to climb the top of the mountain.上面这句话怎么意思? They were able to take a great many photographs of the mountains.在这句话中,为什么要加a? They were able to get to the village in the end.（句意不变）They ____ ____ get to the village in the end. 判断正误,并把错的改正过来1.He cans carry the heavy box.2.We will can pass the exam if we work hard.3.She is able to dance and sing4.They were able take care of themselves.5.Animals can't be able to think. 英语句子改错:They hardly were able to finish the difficult job on time.只有”hardly were”这部分要改.. they have (able)to speak english well They didn't want to come with us at first,but then we ()presuade them.A.would B.couldC.were able to D.had to couldn't 同义句为什么要变过去式用适当的动词和情态动词填空 They couldn't find any secrets.=They ( )not( )to find any secrets.was able问：1.为什么不是were,able2.能否是are ,able？抑或因为could 是can 的过去式 一道英语选择题,新概念第二册同步测试卷上的1.They ______ do well in the exam.A.can be able to B.be able to C.can able to D.are able to记着说明理由 1.The Whites were very poor at that time and ___ send their children to school.A.are not able to B.could not be able toC.cannot D.could not2.The train ___when they ___ to the railway station.A.left,had got B.left,gotC.had left,had got D.had left,got