your mather does some---at home.does not she?A.working in B.work in C.works inD.working
题目
your mather does some---at home.does not she?A.working in B.work in C.works inD.working
答案
选D
do + some / the + doing (动名词)
“做点儿...”
如 do some shopping / do the shopping 买点儿东西
do some reading / do the reading 看点儿东西
这是固定句型!
本句的意思是：“你爸爸在家干点儿活,不是吗?”
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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