SaSan has no pens(改为一般疑问句)They went to school(一般疑问句)
题目
SaSan has no pens(改为一般疑问句)They went to school(一般疑问句)
We pack our schoolbay eveydoy(否定句)
Pat bought a book last night(否定句) He takes a man's arm(一般疑问句)They last their wallot yesterday(一般疑问句)
答案
Doesn't SaSan have pens?Did they go to schoolWe don't pack our schoolbag eveyday Pat didn't bring a book last nightDoes he take a man's armDid they last their wallot yesterday (最后一句感觉楼主单词有...
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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