I saw various kinds of birds in the park.

He is saving his monthly earnings.

He believes it's important to uphold his own rule.

We participated in the project with Yo.

My mother woke me up.

The house quaked in the earthquake.

Because he has immunodeficiency, he always pays attention to his health management.

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

It is said that secondhand smoke has a negative impact on health.

My younger brother goes to a school for special needs.