`1`. Who is the owner of this shoe?

`-` Who + be + the owner of + S?: ai là chủ của cái gì

`2`. We used to have a lot of friends when we lived in the countryside.

`-` S + used to + V-inf: đã từng làm gì

`3`. You should take care of the pet dog carefully.

`-` take care of sb/sth: chăm sóc, quan tâm

`4`. I was born on July `1`st.

`-` S + was/were + born + on + ngày tháng cụ thể

`5`. Miss Oanh gets to school by motorbike every day.

`-` get to somewhere by motorbike: đi đâu bằng xe máy