she told us that she would have a holiday when she had finished the design.
题目
she told us that she would have a holiday when she had finished the design.
为什么用"had finished",而不用"finished"?如果将前半部分变为"she tell us that she will have a holida",后边"finish"应该用什么格式?
答案
had finished 表示这个动作还没有执行 如果执行了就用finished
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
- 已知二次函数图像经过（—1,0）（3,0）（1,—5）三点,求这个二次函数的解析式
- Is it (fun ) to see a monkey riding the bicycle?
- 取2支试管,1号试管加2ml稀释的浆糊、2ml唾液,2号试管加2ml稀释的浆糊、2ml的清水,分别向两支试管中各滴加
- Now more and more people like football better
- 2√3（√12-3√75+三分之一√108）
- 合数和约数是一样的?
- 一个袋子内有3个红球n个白球从中任取2个,已知取出的球至少有一个是白球的概率是7/10则n的值是多少.答...
- so+谓语＋主语
- 平均速度就是速度的平均值,既有大小,又有方向,是矢量
- 有关大自然的诗歌和故事.