EX6

46 C Learn ---> learning

47 A Finished---> finishing

49 D in ---> at  ( chỗ đầu đáng lẽ là I'm chứ không phải I không vì afraid là tính từ mà mình nghĩ chắc bị lỗi)

50 A Don't allow ---> aren't allowed

51 A Because --> Because of

54 B Telling ---> being told

EX7

56 C A waitress who served us was very impolite and impatient

57 D If she had been wearing a seat- belt, she wouldn't have been injured

58 B Tom asked Ann to sew on the button for him

59 A He coughed in order to warm them that he was coming

60 C It's a long time since I had a good meal

$@Shiro$

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46. C → learning

47. A→ finishing

49. D → at 

50. A → aren't allowed

51. A → Because of

54. B  → being told

56. C 

57. D 

58. B 

59. A 

60. C