comeputers are very useful in our lives,()they?
题目
comeputers are very useful in our lives,()they?
A isn't B wasn't C doesn't D aren't
答案
D
前面肯定,后面否定
前面否定,后面肯定
例句:They are very cute,aren't they?
They are not very cute,are they?
举一反三
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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