We needn't have taken warm sweaters. We _______ the space in our luggage for more booksa. can have used b. could have used c. ought to used. may have done为什么选b 不选C, 高手们帮一下忙把,谢谢了!

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Weneedn''thavetakenwarmsweaters.We_______thespaceinourluggageformorebooksa.canhaveusedb.couldhaveused

We needn't have taken warm sweaters. We _______ the space in our luggage for more booksa. can have used b. could have used c. ought to used. may have done为什么选b 不选C, 高手们帮一下忙把,谢谢了!
We needn't have taken warm sweaters. We _______ the space in our luggage for more books
a. can have used b. could have used c. ought to use
d. may have done
为什么选b 不选C, 高手们帮一下忙把,谢谢了!

We needn't have taken warm sweaters. We _______ the space in our luggage for more booksa. can have used b. could have used c. ought to used. may have done为什么选b 不选C, 高手们帮一下忙把,谢谢了!
你可以通过语境判断阿 前面那句话说得是we needn't have taken,是现在完成时态,后面的话首先时态就要对应,要用have done形式.而且C选项是虚拟语气,表示即将发生的事,时态明显对不上.还有你要准确的理解句子本身的意思.

答案是B。We needn't have taken warm sweaters的意思是“我们本来没有必要带厚毛衣的”谈的是过去的动作,答案C是现在的情况。答案B谈的是过去动作的虚拟,意思是本来可以做。。。。
这句话的意思是:我们本来没有必要带厚毛衣的,(这样)我们就可以用装行李的空多带几本书了。...

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答案是B。We needn't have taken warm sweaters的意思是“我们本来没有必要带厚毛衣的”谈的是过去的动作,答案C是现在的情况。答案B谈的是过去动作的虚拟,意思是本来可以做。。。。
这句话的意思是:我们本来没有必要带厚毛衣的,(这样)我们就可以用装行李的空多带几本书了。

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You_all the trouble had you know she has not there.A.mustn't take B.needn't take C.mustn't have taken D.needn't have taken Since we have enough money ,we ( ) more.该填needn't还是 don't need?为什么? ) the examination againsince you had already passed it .A needn′t haveA needn′t have Bdidn′t need to take C needn′t take D mustn′t take You-------miss the lesson ,though we --------------have it on Thursday.A mustn't;needn't B needn't;mustn't C mustn't;mustn't D needn't;needn't 用should,shouldn’t,must,mustn’t,needn’t,can’t ,may,have to 填空. 1.―― I take the message for you right now?-- No,you needn’t.2.Do we join the club today?3.Look at the sign.You throw litter around here.4.-- I ask you some questions, She _ the examination again since she had already passed it.A.needn't have taken B.needn't take C.oughtn't take D.didn't need to take 英语:She ( ) the exam again as she had already passed it.1.needn't have taken 2.needn't take为什么 求解析Travelling from England to Scotland you _______A.needn’t a passport B.don’t need to have a passportC.needn’t to take a passport D.don’t need take a passport 几道初中英语句子改错题A you needn't to be worried about meB another thing,should i to take my camera with me?C you needn't smoke in this part of the restaurant it's a no smoking area.D it must be nice when i am older.E we have get to the e It's quite warm here.You needn't ____ so many clothes.[A]take [B] have taken You needn't have bought so many apples since we have had plenty of them帮忙翻译下, You _____ again, but since you are here, i think we should let you have another tryA.needn't comeB.shouldn't comeC.needn't have comeD.couldn't have come选哪个?为什么? Still,she needn't have run away. 区别shouldn't have done 和 needn't have done You __ have my computer if you don't take care of it.A.shall not B.might not c.needn't D.shouldn't You _________hurry,we still have some time.A.don't need B.needn't to C.need to D.don't have to needn't have done还是didn't have doneAs it turned out to be a small house party,we ______ so formally.A.needn't dress up B.didn't have to dress up C.might not have dressed up D.needn't have dressed up选什么啊,why why,还有as it turned out to b couldn't don't have to needn't的区别