We should donate our old clothes to poor people.

The new TV show has become very popular among teenagers.

Air pollution is becoming a serious problem in big cities.

Solar energy is renewable and does not harm the environment.

My father always encourages me to study hard.

Students are trying to raise money for the school charity event.

The film was so entertaining that everyone laughed a lot.

We should reduce the amount of plastic we use every day.

Scientists are finding ways to preserve rare animals in national parks.

When you do community service, you can make a real difference.

He became famous after winning the international singing contest.

Local people are very friendly to tourists.

Students should be responsible for keeping their classroom clean.

The Internet provides a great source of information for students.