问题
选择题
A large number of people are held up in the railway station for tickets to return home．
A．wait
B．waited
C．to wait
D．waiting
答案
D
题目分析：考查非谓语动词。句意：许多人滞留在火车站，等待回家的车票。根据句意，大部人滞留车站，后面的是表伴随状语，用主动形式，故选D项。
考点 : 考查非谓语动词