51. overseas

52. homeless

53. truth

54. direction

55. easily

56. importance

57. helpful

58. vegetarian

59. medical

60. natural

61. I have learned EL for three years.

62. Where did you she her last month ?

63. She was watching TV while her mother was cooking dinner yesterday.

64. Have they visited their parents in 2 days ?

65. This is the most interesting book we have ever read.

IV:

41: for

42: to

43: thanks

44: than

45: four

46: days

47: summer

48: three

49: for

50: vacation

V:

1: overseas

2: homeless

3: truth

4: direction

5: easily

6: importance

7: helpful

8: vegetarian

9: medical

10: natural

VI:

1: I have learned English for 3 years

2: Where did you see her last month?

3: She was watching TV while her mother was cooking dinner yesterday

4: Are they going to visit their parents in 2 days?

5: This is the most interesting book we've ever read