John isn’t in.He (go) shopping.I will tell him your phone call as soon as he (return).
题目
John isn’t in.He (go) shopping.I will tell him your phone call as soon as he (return).
答案
约翰不在家,他去购物了.他一回来我就告诉他你的电话号码.
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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