$\text{@su}$

`1,` How far is it from your house to the bookstore

`=>` How long/How far + is it + from A to B? : Khoảng cách từ A đến B là bao nhiêu?

`2,` Mai used to go to school on foot when she was in primary school

`=>` used to + Vbare : đã từng làm gì (và bây giờ không)

`3,` It is very important to obey the traffic rules when using the road

`=>` It is + adj + to V : nó là như thế nào khi làm gì

`4,` Christmas is one of the most famous religious festivals in the world.

`=>` So sánh nhất : tobe one of the adj-est/most adj + Ns

$\text{@Bulletproof Boy Scout}$

`1.` How far is it from your house to the bookstore?

`-` Cấu trúc: How far is it + from + N (place) + to Nplace + ...

`2.` Mai used to go to school on foot when she was primary school

`-` Cấu trúc: S + used to + V-inf 

`3.` It is very important to obey the traffic rules when using the road

`-` Cấu trúc: S + be + adj + ..

`4.` Chirstmas is one of the most famous religious fesstivals in the world 

`-` Dịch: Giáng sinh là một trong những lễ hội tôn giáo nổi tiếng trog thế giới