下题选A选D?without the dreams of the younth,this invention might ___for a century A have been postponed B has been postponed C postpone D be postponed

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下题选A选D?withoutthedreamsoftheyounth,thisinventionmight___foracenturyAhavebeenpostponedBhasbeenpostpon

下题选A选D?without the dreams of the younth,this invention might ___for a century A have been postponed B has been postponed C postpone D be postponed
下题选A选D?
without the dreams of the younth,this invention might ___for a century
A have been postponed B has been postponed
C postpone D be postponed

下题选A选D?without the dreams of the younth,this invention might ___for a century A have been postponed B has been postponed C postpone D be postponed
考点,情态动词表推测的用法
A(如果)没有青年的梦想,这项发明可能会被推迟了一个世纪.

D,被动

D吧,A不是完成时么?

A啊 对过去进行推测 且对现在有影响

i'm tired after working _ whole year without _ break.A a a B the a C the the D a the为什么选A 下题选A选D?without the dreams of the younth,this invention might ___for a century A have been postponed B has been postponed C postpone D be postponed 英语翻译Without you i'd be an emotion without a Without you?I'd be a soul without a purpose.Without you?I'd be an emotion without a heart.I'm a face without expression,A heart with no beat.Without you by my side,I'm just a flame without the heatIf you were a teardrop;In my eye,For fear of losing y Without you I'd be a soul without a purpose.Without you I'd be an emotion without a heart.I'm a face without expression,A heart with no beat.Without you by my side,I'm just a flame without the heat.Elle Kimberly Schmick 帮我翻译一下大概意思 It's not---good idea to drive for four hours without ----break.A a;a B a;the C the;a D the;theIt's not---good idea to drive for four hours without ----break.A a;a B a;the C the;a D the;the 为什么选A?break不是一般都不可数码? HE left the room without ______ a word?A speaking B saying C talking D say 这道题为什么选D?7.Without the _______ materials imported from abroad,Japan can hardly produce anything.A.storey B.valuable C.spare D.raw The boy is very clever .He can work out such a maths problem without d_. I____have failed the exam without your help.A.should B.shall C.might D.will Everyone has seen the film ____ Mary A.without B.except C.beside D.no The boy went to school_______breakfast A.not have B.has no C.without D.not has Can you finish the work ( )our help?A.for B.with C.under D.without he A.left the room B.without c.say D.goodbye.(改错题) I can finish the work _____ your help A.without B.in C.of D.off The little boy went out of the shop without ___for the food.A.pay B,pays C,paid D.paying All the students in Class One went to the cinema __ lingling,why?Because she was ill.A、beyond B、without C、except D、towards 选什么,为什么? No one ______this building without the permission of the police.A is leaving B is to leave C has left D will be leaving.选哪个,为什么?