1.The old man ____last year.He____for a year.(die)(动词填空)
题目
1.The old man ____last year.He____for a year.(die)(动词填空)
2.Miss Gao left an hour ago.(同义句转换)
Miss Gao____ ____ ____ ____an hour ago.
3.Her mother has been a Party member for three years.(同义句)
Her mother ____the Party three years____.
答案
died...has been dead
has been away since
joined...ago
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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