英语单选三道题目求大神解答

英语单选三道题目求大神解答

题目
英语单选三道题目求大神解答
1、
—— I wonder how much you charge for your services
—— The first two are free____ the third costs 30 dollars
A. while B. until C. when D. before
2、
A good friend of mine from ____ I was born showed up at my home right before I left for Beijing.
A. how B. whom C. when D. which
3、
We tried to find a table for seven, but they were all ____.
A. given away B. kept away C. taken up D. used up
答案
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
奥巴马演讲不用看稿子.为什么中国领导演讲要看?
想找英语初三上学期的首字母填空练习……
英语翻译
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