一道英语选择题.为什么要这样选?As soon as we receive the signed form,we will add your name to the list of people （ )snow shoveling.A.requiringB.requireC.required标准答案是选A.但是为什么?

一道英语选择题.为什么要这样选?As soon as we receive the signed form,we will add your name to the list of people （ )snow shoveling.A.requiringB.requireC.required标准答案是选A.但是为什么? 问一道英语选择题 为什么选B? 英语选择题I'm sorry.what I said yesterday.at for as要选哪一个?为什么? 一道英语选择题请问为什么不选d 一道英语选择题,要解析 一道英语选择题.为什么选A不选C.不是过去一段时间要用过去完成时吗 英语选择题一道,说明一下为什么 一道英语选择题we should try our best to make C possible.其中为何选C?A as fewer mistskes as B as few mistakes as C mistakes as few as D as less mistakes as 一道英语选择题,As is reported……As is reported,it is 100 years ____ Qinghua University was founded.A.when B.before C.after D.since为什么不能选C呢? 关于as different as与be different from的选择题My house party is ____Mary's.A.different from B.as different as选什么答案?为什么? 一道英语选择题的疑问?I( )as a writer for five years,which cotributes a lot to my today's work.答案是选served,为什么不选have served,现在完成时不是过去发生的事对现在造成的影响和结果么?题中是过去发生的 我想问一道英语选择题__ his wife's being late,I said nothing about it.A. As B.Because of C.Since 一道英语选择题.为什么选A不选B.不是过去的一段时间要用过去完成时吗 一道英语单项选择题Listen and number the words_____you hear them. A.as B.while C.when D.meanwhile为什么选C呢？为什么不选B呢？B不也是当……时吗？给我讲一下 一道英语选择题（希望解释得详细些）Do come here tomorrow________ we, as planned, will enjoy the wonderful performance together. A: otherwise B: or C: and D: therefore为什么选C,D项为什么不行? 一道英语选择题,要解析补充图片 只有一道英语选择题 要讲解 一道英语选择题you boys and girls,remember to write your composition_____ you are told.A what B that C as Dlike为什么 可以说清为什么吗