题目

The newspaper says if more underground lines          next year, it will be much easier for people to travel around Nanjing.       A. will be finished          B. have finished      C. are finishing       D. are finished 答案：D2．若$\frac{x}{y}=\frac{7}{8}$，则$\frac{x+y}{y}$=$\frac{15}{8}$．