My room is the quietest in the house.

Among my family, I am the tallest.

He was working on that project round the clock.

Due to his somnambulism, he may walk around unconsciously in the middle of the night.

He is working round the clock.

I am planning to go to school tomorrow.

He sacrificed his time for the team.

This silkworm produces beautiful silk.

Physical education is my favorite class.

Education is an important element in building the foundation of society.