There are many people (talk) there under the tree.是道适当形式填空题
题目
There are many people (talk) there under the tree.是道适当形式填空题
答案
talk 改成talking,因为are是谓语,一句话中不能有两个谓语,要把Talk这个谓语变成非谓语.或者把整句改成Many people talk under the tree 也行.
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．
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