I was friends with her for 10 years.

There is a secret between him and me.

The environmental issues are becoming more serious.

Environmental issues are becoming more serious day by day.

They are my best friends.

By chance, he met my old friend.

In the early morning, he brewed coffee and started his day.

He completed the project in a week.

I'm always busy during the daytime, and I only have time to rest at night.

He had been working overseas for an extended period of time.