问题
选择题
Shanghai is the first city in the world _____________ a high-speed maglev train，from the city to Pudong Airport．
A．building
B．having built
C．to have built
D．built
答案
答案：C
题目分析：考查非谓语动词。在英语中，由序数词修饰的名词后常用不定式作定语。句意：上海是世界上第一个建高速磁悬浮列车的城市，从城市到浦东机场。故C正确。