He is engaged in the geological investigation of that area.

At dawn, the birds start to sing.

I wonder what to write in this brand-new notebook.

This bleached white cloth is very soft and highly absorbent.

He injured his kneecap during a soccer match.

He hit his kneecap and seemed to be in pain.

His dream is to write a full-length novel.

He sat in front of the computer for a long time.

We conducted a detailed investigation into the issue.

The music was within audible range.