He explained the reason why he chose late marriage.

The dinner that my mother made was very delicious.

He accompanied my song on the piano.

The teacher wrote the problem on the blackboard.

This museum exhibits old photos printed in collotype.

May his health last for an extremely long period of time.

This beautiful blue crystal is called chalcanthite.

I saw a coot in the park.

My new keyboard is very easy to use.

This law applies to all the people.