he worked in shanghai last year.you can go shopping this afternoon.i did my homework last night .
题目
he worked in shanghai last year.you can go shopping this afternoon.i did my homework last night .
ken had some chicken for supper yesterday.I,d like to visit the great wall 帮忙变疑问和否定
答案
He didn't work in Shanghai last year.
Did he work in Shanghai last year?
You can't go shooping this afternioon.
Can you go shopping this afternoon?
I didn't do my homework last night.
Did you do your homework last night?
Ken didn't have any chicken for supper yesterday.
Did Ken have any chicken for supper yesterday?
I'd not like to visit the Great Wal
Would you like to visit the Great Wall?
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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