首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Mary______my letter; otherwise she would have replied before now.
Mary______my letter; otherwise she would have replied before now.
admin
2016-02-04
55
问题
Mary______my letter; otherwise she would have replied before now.
选项
A、has received
B、ought to have received
C、couldn’t have received
D、shouldn’t have received
答案
C
解析
这个句子的前半部分是对过去事情的否定推测,“玛丽一定是没收到我的信”,因此要用could not have done sth.。我们知道,对现在的肯定推测用must+动词原形,否定推测用can’t+动词原形,如:It’s 7 o’clock now;he must be back from work.已经7点了,他一定下班了。It’s 7 o’clock now;he can’t be in the office.已经7点了,他不会在办公室。对过去的肯定推测用must+动词完成式,否定推测用can’t(couldn’t)+动词完成式,如:You must have made a mistake.你一定是做错了。The light is on;hecan’t(couldn’t)have gone out.灯还亮着,他一定没出去。
转载请注明原文地址:https://kaotiyun.com/show/BhPO777K
0
在职攻硕英语联考
相关试题推荐
Librariesformavitalpartoftheworld’ssystemsofcommunicationandeducation.Theymakeavailableknowledgeaccumulatedthr
Bysaying"Beamemberoftheclean-plate-club!"(Para.1)aparentorgrandparentisaskingthechildrento______.Accordingto
Theproblemisthattheyareunabletocommunicateeffectivelyinthelanguage______publicservicesareoffered.
Mr.Wells,togetherwithallthemembersofhisfamily,forEuropethisafternoon.
TeachersintheUnitedStatesearnlessrelativetonationalincomethantheircounter-partsinmanyindustrializedcountries,y
Waiter:Goodevening.______Customer:Actuallythereare3ofus.Afriendisjoiningustonight.
Therichhavetraditionallypassedtheirwealthontotheirchildren.Butanincreasingnumberofbillionairesarechoosingnot
Earth’sNorthandSouthPolesalefamousforbeingcoldandicy.Lastyear,however,theamountoficeintheArcticOceanfeUt
BenjaminFranklinwasAmerica’sfirstinternationallyfamousswimmerandswimmerteacher.AsaboyFranklinlivedinBoston,
这个问题可以在下次会议上讨论。
随机试题
设l是曲线y=x2+3在点(1,4)处的切线,求由该曲线,切线l及Y轴围成的平面图形的面积S.
男性,46岁,胃镜检查发现胃小弯侧1.2cm×1.0cm浅表溃疡,病理诊断为腺癌。手术切除标本病理示病变累及黏膜层及黏膜下层,小弯侧有2枚淋巴结转移。应诊断为
计算I=,其中Ω为z2=x2+y2,z=1所围成的立体,则正确的解法是()。
下列各项中,会引起固定资产账面价值变动的有()。
邓小平同志“一个国家、两种制度”的创造性构想,是指在一个中国的前提下,国家的主体坚持社会主义制度,香港、澳门、台湾保持原有的资本主义制度(),按照这个原则来推进祖国和平统一大业的完成。
下列不属于数据库运行过程中可能发生的故障是()。
HavingA(finished)histermpaperB(beforethedeadline),C(itwasdelivered)totheprofessorD(before)theclass.
Ineverycultivatedlanguagetherearetwogreatclassesofwordswhich,takentogether,comprisethewholevocabulary.First,t
Itisacuriousparadoxthatwethinkofthephysicalsciencesas"hard",thesocialsciencesas"soft",andthebiologicalsci
判定市场大势后分析该行情的幅度及持续时间主要依靠的分析工具是()。
最新回复
(
0
)