21. Some reporters asked the newly-elected president to _______ his position on education reform.
A. conclude B. explain C. introduce D. clarify
22. With more favorable policies being carried out, more car buyers are willing to ________ from fuel to electricity now.
A. process B. assess C. switch D. reject
23. The stronger the______ for acquiring language skills is, the more quickly a language beginner will learn.
A. administration B. motivation C. occupation D. contribution
