I received an unexpected gift from my friend.

He made a deliberate decision to quit his job.

I need to convey an important message to him.

The determinant of a matrix can be used to determine if it is invertible.

The world of aviation has always fascinated me.

Despite their differences, the two paintings are very much alike.

I need to provide my credential to access the secure area.

The company has a large amount of receivable from its customers.

Let me restate my point.

I work in the healthcare industry.