过去进行时作文,
题目
过去进行时作文,
关于昨天对一家人的描述,要用过去进行时,不能有语法错误!
答案
I had a nice Sunday last week.I was getting up at 6 and was doing morning exercises at 8.At 11,I was helping my mother with the cooking.I was playing football with my friends at 2 in the afternoon.At ...
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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