I was surprised at his quick progress.

I am surprised at the quickness of this project's progress.

The population is coming down.

The population is rapidly decreasing.

He voluntarily took on the job.

We should go forward.

We will contact you as soon as we confirm the progress of the construction.

Due to reckless deforestation, our planet is facing serious environmental issues.

In this area, reckless deforestation is progressing, and the forest is rapidly decreasing.

We like to walk in the forest on weekends.