He was working as a body double for a famous actor.

I saw a rhesus macaque in the park.

It is said that rhesus macaques are very intelligent.

She is always badmouthing people behind their backs.

The reflection of the mountain on the lake is beautiful.

We have been working on this project for ten months.

He is completely nowhere to be seen.

The destruction of the ozone layer has a significant impact on the Earth's climate.

Believing that failure is a stepping stone to success, he challenged again.

Believing that failure leads to success, he continued to challenge himself over and over again.