---It is not a secret that CEOs of major companies earn a large amount each year.--- I agree. ____ the hard economic times, it seems that their salaries have remained the same.
26. The doctors ______his health.
25. The book ______forty maps, ______three of Great Britain.
24.He has ______the habit of taking notes while reading.
23. The writing brushes ____bamboo and animal’s hair.
22. In ______,people in that village were very poor.