there be结构除了there is there am there are还有什么
题目
there be结构除了there is there am there are还有什么
答案
There will be
There would be
There should be
There was
There were
There might be
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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