He is good at geometry.

He is interested in archaeology.

He was forced to drop out of school due to poor grades.

He had to drop out of school because he broke the school rules.

He has a deep interest in literature.

I studied in the library with my schoolmate.

My major is chemical engineering.

This road is made of crushed stone.

The task of breaking a large rock down to the desired size is very difficult.

It was the first time I sat with him.