I waited, cold and tired, out of the building for ______ seemed to be a very long time.
A. which B. that C. what D. it
答案是C。请问怎么理解?谢谢!
这里的 what 为复合连接代词,在此引导宾语从句(用作介词 for 的宾语),同时 what 在此用作宾语从句的主语。又如:
The young girl was too frightened to speak, standing there for what seemed like hours. 小女孩吓得不敢说话,在那儿站了几个小时。