两题英语改句,
题目
两题英语改句,
1、None of the students put up their hands expect Tony yesterday(保持原句意思）
____ Tony ____ his hand yesterday.
2、Who cleaned the classroom for us last Friday?(改为被动语态）
By ____ ____ the classroom cleaned for us last Friday?
答案
1、None of the students put up their hands expect Tony yesterday(保持原句意思）
__Only__ Tony raised____ his hand yesterday.
2、Who cleaned the classroom for us last Friday?(改为被动语态）
By _Whom___ _was___ the classroom cleaned for us last Friday?
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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