把下列句子变为that which 引导的定语从句：1.your friends lose some keys and you went to know if f...
题目
把下列句子变为that which 引导的定语从句：1.your friends lose some keys and you went to know if f...
把下列句子变为that which 引导的定语从句：1.your friends lose some keys and you went to know if found them 2.a friend is wearing a dress are you like it you tell her 3.your frend had to do some work you want to know if she was finished
答案
1 Have you found those keys that/which you lost earlier?2 The dress that/ which you are wearing quite fits.3 Has the work that/which you were doing been done?
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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