xiexieThough his faher ______for many years……A has retired B has been retired 为啥要be 而不选A?--Yeterday was Saturday ,you ______to work.--I thought it was FridayA didn‘t have to go B needn’d have goneIn order to host the World‘s Fai

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xiexieThough his faher ______for many years……A has retired B has been retired 为啥要be 而不选A?--Yeterday was Saturday ,you ______to work.--I thought it was FridayA didn‘t have to go B needn’d have goneIn order to host the World‘s Fai
xiexie
Though his faher ______for many years……
A has retired B has been retired 为啥要be 而不选A?
--Yeterday was Saturday ,you ______to work.
--I thought it was Friday
A didn‘t have to go B needn’d have gone
In order to host the World‘s Fair ,the city___bulid a huge exhibition centre
A must B should C need BC错哪了?

xiexieThough his faher ______for many years……A has retired B has been retired 为啥要be 而不选A?--Yeterday was Saturday ,you ______to work.--I thought it was FridayA didn‘t have to go B needn’d have goneIn order to host the World‘s Fai
第一题 retire不是延续性动词 用be表示状态
第二题 我觉得选B 本不需要去,但他去了
第三题 应该是从语义看的
以上均为个人观点……

被动的。

1. retire 可及物,也可不及物。
选A的话,意思是:尽管他父亲退休多年,。。
选B的话,意思是:尽管他父亲被打发退休/被辞退多年,。。。
看上下文。如果只有这一部分的话,我觉得都可以。
2 选A
.need 一般很少用在否定中,更何况还是过去完成的否定。
从来没有看到过needn't have gone这种说法。
3. 为了。。。,这...

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1. retire 可及物,也可不及物。
选A的话,意思是:尽管他父亲退休多年,。。
选B的话,意思是:尽管他父亲被打发退休/被辞退多年,。。。
看上下文。如果只有这一部分的话,我觉得都可以。
2 选A
.need 一般很少用在否定中,更何况还是过去完成的否定。
从来没有看到过needn't have gone这种说法。
3. 为了。。。,这个城市“必须”建一座大型展览中心。
看意思是强调“必须”。
(弱弱地说,我感觉用shoud,也没啥问题。语法肯定不错,就看出题老师怎么想了)
希望对你有帮助~

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第一题我觉得答案也是A吧,最好把题目打完。
第二题选A吧,原因1是时态didn't与yesterday呼应,原因2是have gone to是指去了没回来吧,和现在的对话有矛盾
第三题考察情态动词,为了主办世界大会,城里必须要建一座巨型展馆。采用排除法,should的主语一般是人,以第一人称居多,强调主观决定,need做情态动词常用于否定句和疑问句中,如果做实义动词在这里应该是第三...

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第一题我觉得答案也是A吧,最好把题目打完。
第二题选A吧,原因1是时态didn't与yesterday呼应,原因2是have gone to是指去了没回来吧,和现在的对话有矛盾
第三题考察情态动词,为了主办世界大会,城里必须要建一座巨型展馆。采用排除法,should的主语一般是人,以第一人称居多,强调主观决定,need做情态动词常用于否定句和疑问句中,如果做实义动词在这里应该是第三人称单数。

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