he has a new bike doesnt he?
题目
he has a new bike doesnt he?
isnt对吗?
但是选项里没 doesnt have
只有 A、wasnt he B、isnt he C、does he D、doesnt he
选哪个?
答案
he has a new bike,doesn't he?
isn't 是不对的,
因为has的原型是does have,作否定的话就是doesn't have
就选D
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
最新试题
热门考点