they are having a great time___in the pool.横线上是填to swimming 还是swimming 为什么?急用.
题目
they are having a great time___in the pool.横线上是填to swimming 还是swimming 为什么?急用.
答案
swimming,to是不定式后面要跟动词原形,这里的swimming是现在分词做状语.
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