Please calculate the square of this number.

He goes to the temple to listen to the sermon every Sunday.

He is my most trustworthy friend.

Her singing voice is as beautiful as the call of a Chinese phoenix.

Learning the etiquette of tea helps to understand Japanese traditional culture.

The way of making this poem is very unique.

He surprised the enemy by firing a blank.

He checked the rear.

He used dichotomy to solve the problem.

I reported the incident to the police.