There was once ___ time ___ they were good friends 为什么填a,when
题目
There was once ___ time ___ they were good friends 为什么填a,when
答案
There was once a time when they were good friends
从前有一段时间 他们曾是好朋友
There was 有
once 从前
a time 一段时间
when 关系词
when they were good friends 定语从句
我也可以加分哟 哈哈
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