There is something wrong with my watch.It needs f___
题目
There is something wrong with my watch.It needs f___
答案
There is something wrong with my watch.It needs （fixing,修理）.
我的手表出问题了.它需要修理了.
need doing,需要被…….这里要用doing来表示被动的含义.
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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