He showed the sign of the horns at the rock concert.

He gifted me a signed copy of his new book.

The project got the green light, so we will start from tomorrow.

The teacher gave me a book.

The teacher gave me some advice.

The Ark of the Covenant is a sacred box described in the Old Testament.

This document is very important.

I read the letter from him.

Please write your name with a marker pen.

The calculation of arcsine is a part of trigonometry.