Where are her penCilS?改单数句 Are his haseballS u
题目
Where are her penCilS?改单数句 Are his haseballS u
Where are her penCilS?改单数句
Are his haseballS under the sofa?作肯定回答
IS it your book?变为复数句
Is the watch on the table?作否定回答
The keys are in the drower对in the drower部分提问
答案
1、Where is her pencil?
2、Yes,they are.
3、Are they your books?
4、No,it isn't.
5、Where are the keys?
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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