We wrote a paper co-authored by us.

He traveled a long distance to meet that famous author.

Intestinal juice plays an important role in the digestion of food.

He was sentenced to 10 years in prison.

We are planning to build a new storage building.

We need to store wine at the appropriate temperature.

He mourned the death of his friend and expressed deep condolences.

My savings are gradually increasing.

I save a part of my salary every month.

His improvement in grades is remarkable.