问题
选择题
Readers are required to _________ the rules of the library and mind their manners.
A．observe
B．confirm
C．review
D．appreciate
答案
答案：A
题目分析：句意为：读者要遵守图书馆的规定，注意他们的言行举止。observe vt 观察，遵守；confirm vt 确认，确定，证实；review vt 回顾，检查；appreciate vt感激，欣赏。故答案应为A。