求助一道英语单选,At last,the boy found themselves in a pleasant park with trees providing shade and__down to eat their picnic lunchA.to sit B.sat C.sitting D having sat为什么答案是B,不是C,sitting不应该是主动关系吗,如果B是

求助一道英语单选,At last,the boy found themselves in a pleasant park with trees providing shade and__down to eat their picnic lunchA.to sit B.sat C.sitting D having sat为什么答案是B,不是C,sitting不应该是主动关系吗,如果B是 求助英语单选. 英语单选一道 obviously late ,the last person ____at scholl came_____across the school yardarrive run 分别用不定式还是ING 要原因 At the end of last month I had made to the United States.At the end of last month I made it to the United States.这两个句子哪一个是对的.初三英语的一道单选题,纠结ing…… 问一道英语单选题At last week's Oscars,a small number of films _____ nearly all the prizes.A.put off B.carried off C.kept off D.paid off 求助英语单选.,只有几道 求助英语单选.求理由谢谢 一道英语单选We were all agreed that the cottage would ____ perfect holiday home for the family.为什么要用make而不用turn?比如说He turns teacher at last.这样的用法不适用此句?为什么可以说He turns teacher不能说the cott 英语单选题求助! 求助一道英语填空题=_=We all elected Bod ____ of our computer company at last.（manage） 英语单选题一道,说清楚选哪个,并说清楚为什么?题见下Please sit ___ the back.A.on B.at C.of 英语名词性从句单选一道He was interested in____he had seen at the exhibition.A.whichB.thatC.all whatD.all thatB怎么不对? 一道英语单选class regulation require —is the last to leave the classroom —off all the lights A who ,should turn B whom ,shall turn C whoever ,turn 一道英语题：关于OF短语at the beginning of the exam _______ easy(is or are)单还是复?这个短语做主语,单还是复 求助一道英语题目 求助一道英语单选题_____ is our belief that we all have the responsibility to help create a green world.A.ItB.ThisC.ThatD.What为什么? 高中英语单选求助 单选求助