( )I hope this building _____before August this year.
题目
( )I hope this building _____before August this year.
A.finishes B.will finish C.is finished D.will be finished
答案
D.楼房是被造的,所以要用被动语态.
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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