She helps her mother do the housework.(改为同义句)She_____her mother _____ the housework.
题目
She helps her mother do the housework.(改为同义句)She_____her mother _____ the housework.
答案
She (helps) her mother (with) the housework.
help sb. (to) do sth. = help sb. with sth.
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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