16. Some students think s                 is the most difficult subject.

17. G                 is my favourite subject. I can learn more about mountains and rivers.

18. China is a great country(国家) with a long(长的) h                .

19. M                 is the second day of a week.

20. It's F                 today.

21. We don't go to school on S                 or Sunday.

22. The third day of the week is T                .

23. W                (the fourth day in a week) is my busiest day.

24. The Internet is becoming very u                 for language learning.

25. T                 is the fifth day of the week.

26. If you learn even a little English, you will find it                 (有用的).

27. It's hard                 (完成) the work in such a short time.

28. John looks                 (酷的) in the new windbreaker.

29.                 (星期天) is the first day of the week.

30. David has some Chinese                 (功课) every week.

31. Jack's father is f                (空闲的) only on Sunday.

32. Her favourite                 (科目) is physics.

33. Wang Yaping gave a                 (科学) class from above the earth.

34. I'd rather go to the                 (历史) Museum.

35. Who's good at                 (地理) in your class?

36. The boy's birthday is next                 (星期六).

37. We usually have some PE activities on                 (星期五) afternoon.

38. Today is                 (星期二), February 18th. I'm on duty.

39. I want to go to my uncle's next     &