He thought about the problem from many directions.

He is an expert in immunology.

I have seen a wild turkey before.

A healthy diet and moderate exercise help boost immunity.

The surface of the table is smooth.

What is the area of this room?

The tomb of Tutankhamon is in Egypt.

The interview with him was very meaningful.

The event horizon is a part of a black hole, referring to the region from which even light cannot escape.

He is writing a paper about the event horizon.