loudspeakers were fixed in the hall so that everyone ()an op

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loudspeakers were fixed in the hall so that everyone ()an opportunity to hear the speech.
a.ought to have b.must have c.may have d.should have四个选项选哪个,并说明原因.2006专四考题,懂得进.

a.ought to have 近似should,但含有义务责任所以不选
b.must have 语气强硬必须
c.may have 改成might 就是标答
d.should have 只有D 了
2006专四考题,真的吗?怪题
loudspeakers were fixed in the hall so that everyone might have an opportunity to hear the speech.
loudspeakers were fixed in the hall because everyone should have an opportunity to hear the speech.
got it?
再问：买的是星火的，一本真题一本语法讲解，题目一模一样，一本答案是c，一本答案是d，所以懵了。。。为什么改成might就是标答。。。
再问：买的是星火的，一本真题一本语法讲解，题目一模一样，一本答案是c，一本答案是d，所以懵了。。。为什么改成might就是标答。。。
再答：观察 he got up early so that (目的状从)he could/ might catch the bus. 目的状从里面常用情态动词can/may 本题用过去时所以用might，may就不可以了只好should每人都应该有机会听得到了

there were so many people talking in the concert hall that i I saw that they were watching TV in the hall 英语翻译The years in jail formed habits that were already fixed： There were so many people in the hall,it was ___(人群).A、crowd Please speak ( )so that everyone in the room c There was so mush noise in the hall that the speaker couldn' Speaking louder so that the people in the hall can all hear 英语句子成分划分There are so many people in the hall that it's hard The hall is so large that it holds hunreds of people in it 改 They were invited（ ) an important hall( ) the first time( )t the children were in the hall( in the hall是划线的）划线提问 The film is so ___________ that everyone