there must be something visiting the homes in our neighborhood的语法内容 visiting
题目
there must be something visiting the homes in our neighborhood的语法内容 visiting
答案
there be 结构后面如果有动词,只能用非谓语动词形式：Ving或者Ved.取决于与前一名词的主被动关系.比如这句中something 和visit是主动关系,用visiting.
如果是被动就用ed.如： there must be something done by him.
举一反三
已知函数f（x）=x，g（x）=alnx，a∈R．若曲线y=f（x）与曲线y=g（x）相交，且在交点处有相同的切线，求a的值和该切线方程．
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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