They (played soccer)句型变化
题目
They (played soccer)句型变化
答案
they are playing soccer.
they play soccer
they will play soccer
they were playing soccer
they have played soccer
they had played soccer
还有很多很多,
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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