He lost his pen when he went to school last week.(同义句） he lost his pen____his____ ____schoo
题目
He lost his pen when he went to school last week.(同义句） he lost his pen____his____ ____schoo
答案
on , way to
on one's way （to） 在去……的路上
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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