1. To keep your teeth healthy, remember to brush them.

⇒ Don't forget ___________________________________

2. Do exercise every day to keep your body strong.

⇒Keep your body _________________________

3. Playing outside makes her feel happy.

⇒She feels______________________________________

`\color{#145277}{N}\color{#246483}{a}\color{#34768F} {e}\color{#44889B}{u}\color{#539AA7}{n}`

`1.` Don't forget to brush your teeth to keep them healthy.

`-` Don't forget `=` remember `+` to V : nhớ làm gì

`2.` Keep your body strong by doing exercise every day.

`-` by `+` V_ing : bằng cách 

`3.` She feels happy when playing outside.

`-` feel `+` adj : cảm thấy `...`

1/ to brush your teeth.(sau forget +to+V-bare)

2/strong by doing exercise every day

by + V_ing : bằng cách

3/happy when playing outside

 feel + tính từ : cảm thấy như thế nào

when+V-ing