She is very good at packaging.

He was wrapping the gift.

The children were having fun playing a counting game in the park.

The children were playing a counting game in the park.

He witnessed the incident.

He was a witness to the incident.

He measured the lumber using a square.

He is sickly and often misses school.

He often misses school because of his sickliness.

Tokyo is the largest administrative region in Japan.