【题目】Many white collars went back to second and third-tier cities only ______that housing prices there are also jumping, traffic jams increasing and the air becoming dirty.
A. to have found B. found C. to find D. finding
在线课程【答案】C
【解析】C考查动词不定式。句意：许多白领回到二、三线城市，却发现那里的房价也在上涨，交通堵塞加剧，空气变得很脏。动词不定式表示现在的结果，用动词不定式的一般式形式，故选C。