Virology is the study of viruses.

I have a lot of stuff in my room.

Her style is always on trend.

She worked hard and finally succeeded in her business venture.

Hard work and determination are the keys to success.

He successfully completed the project.

I have never seen such a beautiful sunset before.

Such is the beauty of nature.

I was startled by the sudden noise.

I suggest we go to the park for a picnic.