29. Many universities have institutes of education. (教育学院)

28. She never studies. Instead, she plays tennis all day.

27. He insisted that his students should be there on time.

26. We read newspapers mainly for information, not for pleasure.

25. The country is largely supported by industry, as well as agriculture.

24. A friend in need is a friend indeed.

23. The population of this town has increased by 5percent.

22. To improve the ability to write, we’d better make more sentences.

21. Nothing is impossible to a willing mind (heart).

20. It is very important for us to practice speaking English frequently.