I lost my precious belongings.

She is good at playing the pianoforte.

He submitted a formal affidavit to the police.

He gave a statement to the police about his actions.

We need cooperation to make this project successful.

We have to cooperate to make the project successful.

He is a professor at the University of Tokyo.

He instructed me in piano.

She practices on the upright piano every day.

He lost everything.