Though we don't know what discussed,yet we can feel the topic _.A.had changed B.will change C.was changed D.has been changed.选B,为什么不用被动语态

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Though we don't know what discussed,yet we can feel the topic _.A.had changed B.will change C.was changed D.has been changed.选B,为什么不用被动语态
Though we don't know what discussed,yet we can feel the topic _.A.had changed B.will change C.was changed D.has been changed.选B,为什么不用被动语态

Though we don't know what discussed,yet we can feel the topic _.A.had changed B.will change C.was changed D.has been changed.选B,为什么不用被动语态
这里的答案用排除法只能选B 首先,前半句话是一般现在时态,所以A,C排除；再者,根据语境,虽然我们不知道讨论了什么,但是我们感觉话题将会改变,没有完成时的意思,只能选B,不过个人认为,B应该改一下,改为will be changed 更合适

答案选A（陕西卷）17. Though we don’t know what discussed, yet we 第一题，很显然是自己被当作英雄，不用被动用什么。在此建议一下，要读懂

D
从what was discussed，可知事情已经发生。从can feel可知说的是现在的情况。应用完成时，表示过去一动作对现在造成的影响。又topic 对change是被动关系。故选D。

Though we don't know what （was) discussed,yet we can feel the topic _.A.had changed B.will change C.was changed D.has been changed.选B.
答案应该选D
意思：尽管我们不知道原来讨论的是什么，但我们能感觉到话题已经改变。
首先，前面的what从句...

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Though we don't know what （was) discussed,yet we can feel the topic _.A.had changed B.will change C.was changed D.has been changed.选B.
答案应该选D
意思：尽管我们不知道原来讨论的是什么，但我们能感觉到话题已经改变。
首先，前面的what从句中应该加上was,要不，就是结构错误。
其次，这句话中的答案就是应该使用被动，而且因为我们能够感觉的事情应该是已经被改变的。如果用将来时，你就是先知先觉了。对吧？

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不清楚了

答案应该是D，是过去的讨论对现在造成的影响，而且要用被动。

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