Homo erectus played a significant role in the process of human evolution.

This area was formed under the influence of a lava dome.

Protectionist policies are introduced to protect domestic industries from foreign competition.

My younger brother attends a class for special needs.

The ship entered the port flying a quarantine flag.

Could you attend the meeting on my behalf?

Let's go to see a movie.

I am good at calculations.

I have ultra-high-speed internet at my home.

His behavior is a typical example of narcissism.