单选题 Student: ______.
Librarian: Sure, it's open from 9

A、 m. to 6 p.m. Monday through Thursday, 9a.m. to noon on Friday and closed on Saturday and Sunday.A. Excuse me, could you please tell me the library hours for the holiday?B. Please do me a favor. When is the library open?C. Hello, can I check in these books now?D. Tell me, when are these books due?

【正确答案】 A

【答案解析】很明显，这是关于图书馆什么时候开放的问题。