几道高中英语题.要详细的讲解
问题描述：
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 Chave waited D had been waiting
2.I __the novel for all the morning,yet i haven't finished it.
A.have been readingB.am readingC.was readingD.had been reading
答
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