1. The girl worked hard, but her stepmother wasn't happy

> Although the girl worked hard, her stepmother wasn't happy.

2. The Japanese live for a long time because they eat healthy

> Because of eating healthy, the Japanese live for a long time.
3. Linh has to finish the project for the next lesson
> It is necessary for Linh to finish the project for the next lesson.
4. Nick writes more carefully than Phuc
> Phuc writes less carefully than Nick.
5. He adores playing guitar with his mother and grandparents
> He is interesting in playing guitar with his mother and grandparents.