I adjusted the schedule for tomorrow.

We learned about the importance of sex education at school.

He is good at performing opera.

He is fighting for justice.

I applied for admission to the university.

He is a specialist in orthopaedic surgery.

The formation of a mountain requires millions of years.

I decided to take a painkiller because I have a severe headache.

The speed limit on this road is 60 kilometers per hour.

He is my classmate.