Windows 7 is known to be the latest operating s________.
He told one or two amusing __________ (趣闻) about his years as a policeman.
They set out to __________ (积累) a huge mass of data for the research.
Class and social __________ (地位) is of importance in ancient China.
His sick father is becoming a__________ (负担).
The company made an __________ (调整) in my salary.