4 what do you take into account when you choose a career?

5 this year's festival will break tradition by including modern dances alongside the traditional ones

71why did the little boy pretend to be sick to stay home from school?

75what do you listen to music for?

why do you listen to music to relax?

76.what is the need for a constant supply of water for man and most animals to live?
why do man and most animals need a constant supply of water to live?

thiếu got srry b =))) 

51. It wasn't until his father came home that the boy did his homework

52. It wasn't until his father came home that he could go to school

53. It wasn't until she was 15 that Lan could study English

54. It wasn't until he was forty that Nam could buy a house of his dream

55. It wasn't until she taught at the university that she had been a good teacher

56. It wasn't until he married Marry that he had been a bad husband

57. It wasn't until her manager knew the truth that Anna was punished

58. It wasn't until he failed this exam that Hieu studied hard.