---Can you see some people are waiting the library?---Yes They are standing in a queue i

问题补充：

---Can you see some people are waiting the library?

---Yes, They are standing in a queue in front of its gate.

A. around B. inside C. outside

答案：

解析：考查介词。根据答语的意思他们正排成一队站在门口的前面，可推断出人们是站在图书馆外面，所以应用介词outside，选C。