`-` It is (about) + distance (km) from...to

`1.` It is about 2km from the hospital to the market.

`2.` It is about 1km from my house to my school.

`3.` It is about 300m from the supermarket to the post office.

`-` Used to+V/ Didn't use to + V/Did...use to + V

`1.` I used to walk to school two years ago.

`2.` I didn't use to playing football when I was young.

`3.` Did you use to smoke?

– It is about 10 kilometers from my house to my school. (Nhà tôi cách trường tôi khoảng 10 km.)

I am used to being lied to_Tôi đã quen với việc bị nói dối rồi

I used to walk to work when I was younger.(Tôi từng hay đi bộ đến công ty khi tôi còn trẻ.)