Jawaban:

20. Mr. Berg is living in this country three years now.

21. We are studying the use of verbs in English at the moment.

22. It rains very hard almost every day this week.

23. Daniel Soto works about thirty-eight hours a week.

24. My uncle has been in New York more than two months.

25. Just a minute! I look up that word in the dictionary.

26. Up to the present, we write almost every letters in the book.

27. The sun gets very hot during afternoon.

28. I watch a baseball game on television every Saturday.

29. I am having very little trouble with these lessons up to now.

30. Helen and I have waited right here since four o'clock.

31. For the time being, the workers use a different method.

32. My friends Charles and Tom are needing some money right away.