用be able to的过去时 造句
题目
用be able to的过去时 造句
be able to 过去时 造句 造10句
答案
1I was able to solve the problem at last2But I thank God I was able to learn Spanish.3Being an expert,he was able to pick a hole in our work offhand.4They were able to concert their difference.5Most o...
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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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