1. Vinh really  loves to hang out with his friends.

=> Vinh really enjoys hanging out with his friends.

2. Playing beach games is very interesting.

=> It is interesting to play beach games.

3. Most ethnic people Vietnam speak their own language ( Make question ) 

=> Do most ethnic people in Vietnam speak their own language?

4. The girl works hard. Her step mother wasn't happy ( Use although )

=>Although the girl worked hard, her step-mother wasn't happy.

1. Vinh really enjoys hanging out with  his friends.

2. It is very interesting to play beach games.

3. What language do most ethnic people in Viet Nam speak?

4. Although the girl worked hard, her step mother wasn't happy.