why为什么选A呢?又为什么不选B 和D呢27．—There aren't any toys in our suitcase．Where have you put them?—Oh,no．That old lady sitting next to us ______ have taken ours by mistake.A．must B．could C．should D．would为什么选A

why为什么选A呢?又为什么不选B 和D呢27．—There aren't any toys in our suitcase．Where have you put them?—Oh,no．That old lady sitting next to us ______ have taken ours by mistake.A．must B．could C．should D．would为什么选A Have you ever asked him the reason_____ may explain his absence?A.why B.when C.that D.what为什么选C?怎么不选D呢? 为什么选D不选B呢, 为什么选d,不选a呢? The old tickets show _______things changed.A how B what C why D where 为什么选A呢? 除去空气中的氧气,又不改变其他气体成分,可选择（ ） A镁 B木炭 C蜡烛 D铜B和C一定不会选,就是A和D,告诉我为什么某个不能选呢? 下列物质中,既能与稀硫酸反应,又能与烧碱溶液反应的是a NH4ClB NH4HSC Na2CO3D FeSC是不可以和NaOH反应的.A B D里怎么选呢?A B D怎么选啊为什么D不对?A好象也没错饿..B呢?FeS为什么不能和碱反应? 为什么不选A选B呢 The question is ＿＿＿you a ride.He didn't even know you.A why he gave B why he took C where he gaveD why did he give 为什么不选D?为什么不加did？ Why?Tom,your skirt is so dirty!Mum,I ___ my storeroom downstairs.A cleaned B have cleaned C was cleaning D have been cleaning为什么选D不选B呢? 1.This is___we managed to find our way out of the forest.答案是C为什么不选A呢?A.that B.reason why C.how D.what2.He made___he wouldn't change his mind.答案是B为什么不选A呢?A.that quite clear B.it quite clear C.quite clear D.how clear 为什么不选D呢, 下列粒子中,既具有氧化性,又具有还原性的是 A Mg B Zn2+ C Fe2+ D Cl- 为什么不选D呢 Why not___some milk?A.eat B.drink C.to eat D.to drink答案选的是B.为什么选B,不选D~ A car broke down and that was ____ caused the traffic jam.A.how B.why C.which D.what为什么选D,不选B Why do you like to travel to Yellow Mountains?Because _____ views there are beautiful,______people there are welcome.A.either；or B.neither；nor C.both；and D.not only；but also为什么选D不选C呢 There are____animals in the zoo.A.a lot B.lot of C.lot D.lots of .为什么会选D呢?D呢?为什么不选B, The traditional view is __ we sleep because our brain is“programmed ”to make us do so.A.when B.why C.whether D.that 为什么不能选B呢?翻译不也是很通顺么