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

`1. A` : Làm thế nào để có lối sống khỏe

`-` By adopting healthy habits, we can prevent chronic diseases, improve our physical and mental health, and live a happier and more fulfilling life. A balanced diet is the foundation of a healthy lifestyle. 

`2. B`

`-` DC : A regular sleep routine, avoiding caffeine and electronics before bedtime, and creating a relaxing sleep environment can help improve sleep quality

`3. D`

`-` Them : thay thế cho DT phía trước (healthy habits)

`4. A`

`-` Adequate `=` enough : đủ