is not do not does not 的区别
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is not do not does not 的区别
答案
is not do not does not 的区别其实是动词和主语的否定式的区别be动词的否定式,He is reading－－>He is not reading.实义动词,且不是第三人称单数,转换成否定式The students like to play football－>The students ...
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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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