问题详情：
Have you ever waited for your bus for a very long time, _____ by two or more buses arriving together?
A．only to greet B．only greeted C．only to be greeted D．only greeting
【回答】
C
【详解】
考查动词不定式。句意：你是否曾经等了很长时间的车，结果却是两辆或更多的车同时来接你?。only to do sth表示出乎意料的结果，且主语you与greet在逻辑上是被动关系。故选C项。
知识点：被动语态的用法
题型：选择题
