He was scared to enter the haunted house.

He can always maintain his calmness.

This email contains ghost characters.

He ordered me to clean the room.

Primates are a group of mammals that include humans.

After a cold front passes, the temperature drops sharply.

Please store the food in the refrigerator.

His words were a great encouragement to me.

In this company, it is a convention for new employees to greet their seniors.

There is an exception to this rule.