Festivals are being held in many places.

He started learning a combat sport.

We will do our best to guarantee your safety.

We are planning to expand our business.

What is the probability of that event occurring?

Each class conducts lessons in their respective classrooms.

He calculated the area of the triangle.

He is good at solving trigonometry problems.

Establishing a new company requires time and effort.

He had a conviction in his own correctness.