there is something unusal in the room ,A is there B isn't there c is it D ism't it

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there is something unusal in the room ,A is there B isn't there c is it D ism't it

B isn't there
unusal 看做肯定,所以后半句用否定
there is 后半句也用there

考的是反疑疑问句,前否,后肯,前肯后否不寻常的东西在房间,前否后肯,故选B

b 反义疑问句 前否后肯

选B
unusal 看做肯定,容易混淆为否定词的词语 unhappy,unlucky, Unusual,dislike等。
记住了就行!

B