几道高中英语题.要详细的讲解
题目
几道高中英语题.要详细的讲解
1.The bus came sfter they _____for about half an hour
A had been waited B was waiting C have waited D had been waiting
2.I __the novel for all the morning,yet i haven't finished it.
A.have been reading B.am reading C.was reading D.had been reading
答案
1 .D wait 是在 came 之前 所以使用过去完成进行时
2.A 整个早上都在读,到现在还没完成,所以使用现在完成进行时
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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