His ability is recognized.

He was mourning his deceased grandfather.

He was immersed in deep mourning after his father's death.

The day of the end of the war is an important day for us to celebrate peace.

He believes in lifelong education.

He has accumulated knowledge over the years.

In this project, the integration of various data is important.

I make it a point to go to bed every night at 10 o'clock.

I go to bed every night at 10 o'clock.

He is my best friend.