`66`.We used to go on holiday together

`\rightarrow` `\text{S + used to + V :}` Đã từng

`67`.There didn't use to be much traffic in our village

`\rightarrow` `\text{S + didn't use to + V :}` Không từng

`68`.It is about 10 km from Ha Noi to Hai Phong

`\rightarrow` Khoảng cách : It is about + distance + from N1 + to N2

`64`.Peter used to go to his homeland by train some years ago

`\rightarrow` `\text{S + used to + V :}` Đã từng

`65`.Although the film didn't receive good investment , it was a great success

`\rightarrow` Although + C1 + C2 : Mặc dù

`\text{@ TheFox}`

66. we used to go on holiday together

67. there didn't use to be much traffic in our village

68. it is about 10km from hn to hp

64. peter used to go to his homeland by train some years ago , but now he drives his car

65. although the film was a great success , the film didn't receive good investment