英语单选提问If the trousers are too big,buy a smaller ( ).A、set B、oneC、copy D、pair答案选的是D 但是我选的的是B~我感觉已经出现了一个"a“~而且就用的是单数形式~为什么不可以的~高手请给我解释一

英语单选提问If the trousers are too big,buy a smaller ( ).A、set B、oneC、copy D、pair答案选的是D 但是我选的的是B~我感觉已经出现了一个a“~而且就用的是单数形式~为什么不可以的~高手请给我解释一 简单英语单选If you want to get a good____,you'd better stand on the top of the hill.A sight Bscene Cview Dlook 单选____,the experiment will be successful.A.If carefully doneB.If carefully doingC.If it done carefullyD.If doing carefully为什么选A不选D? ones意思是指人还是指物啊?意思又是什么呢?那么我这里有道题：If these trousers are too short ,buy a bigger ( )A one B pair C ones D trouser为什么这里选pair不选ones呢？ 2012英语高考新课标 单选26The result is not very important to us,but if we do win,then so much the better.为什么这里的 better前可以加the,better现在是什么词性? 英语单选的解答1.-The last one ____ pays the meal.-Agreed!A.arrived - B.arrives C.to arrive D.arriving为什么选c?2.We all know that,_______,the situation will get worse.A.not if dealt carefully with B.if not carefully dealt withC.if dealt no If these trouser are too short,buy a bigger( )1 one2 pair3 ones选出选项,并说明选择的理由 if the temperature________ (raise),the ice turns into water提问 英语单项选择：If the flowers and grass in the garden __ this cold weather ,they need much care.英语单选选择：If the flowers and grass in the garden __ this cold weather ,they need much care.A.have survived B.would survive C.are to survi 怎样区分the,a,/英语单选常常出现的! 英语单选选择Ants are the most common life form on earth, ( ) tiny,their combined weight is greater than that of the combined weight of all humans.A.though B.although C.even though D.as if 大学英语（单选）：​ 题号:1 Knowledge then is the _____ condition of expansion of min;选项:a、indigestibleb、indispensable c、 indissoluble d、indisputable题号:2 If the pressure is not _______ immediately,there may be an explo 英语单选 If I drive in the city myself,2 If I dr ive in the city myself,I’ll probably get lost as I haven’t got __very good sense of ___direction.A.the; a B.the;/ C a ; the D.a ; / 英语单选提问All of you can have more chances in the future.Don't lose ( ).A、your hearts B、your heartC、hearts D、heart但为什么不能选A呢~从上下文看应该是属于复数的呀~ 提问一个英语单选（）global psitioning technology ,the United States carried out a study in 1999 that clainmed Everest peaks at 8850,mA,using B To use C used D Havig used 英语单选13～ 英语单选1, 英语单选,39.40