He lost everything.

She is planning a date with her current boyfriend.

Everyone was surprised by the news.

My boyfriend gave me a gift.

I fine-tuned the television to make the picture clear.

He tuned in the sound of the guitar.

I studied calculus at university.

Microorganisms are one of the basic forms of life.

Microvilli exist on the surface of cells and play a role in helping absorb substances.

He was dozing off in the train.