1. If everyone is kind to others, the world will become a better place. If everyone is kind to others, the world will be better.

We should share our love with others. We should care about others.

As good students, we should help people in trouble. As good students, we should help people in trouble.

It is our duty to protect our environment. Protecting the environment is our responsibility.

5. Don't throw rubbish everywhere. Don't throw rubbish everywhere.

It is very important for us to face the challenge. It is very important for us to face the challenge.