He is my best friend.

If you are the other person, I feel relieved.

Hello, have you seen your mobile phone?

I'm bored and don't know what to do.

He was feeling ennui.

The sheep is eating grass.

If you have an accident, please contact the police immediately.

Since the results of the mock exam were not good, I have to study more.

Instead, he opposed my opinion.

I returned home from school and started my homework.