Відповідь:

1.a;a;a;the

3.a

8.the

11.-;the

12.the;the

14.the

15.the

17.the;the

18.a;-;-;-

20.the

21.the

22.-;-;-

24.-;-

25.-

27.-;-(as a subject in school)

28.a;-;-;-

30.the

31.-

33.the

35.the

36.-

37.-

38.the

39.-

40.a

41.the

42-;the;the

43.-

44.the

45.-

46.-

47.-;a

48.the

49.the;a;the;the

50.the;the

51.-

52.the

53.the

54.-

55.the;the