He is majoring in belles-lettres.

His standard of living has improved significantly.

My friend is suffering from simple herpes.

He was criticized for having a double standard.

This simple forest is very important from the perspective of biodiversity.

The program reads data from the standard input.

The program sends error messages to the standard output.

This document is written in the standard print font.

You need to be mentally prepared before the exam.

He explained using simple words.