He gulped down the water, perhaps because he was nervous.

He is a renowned person in that field.

His theory is very interesting.

He is working hard.

He is painting a picture using a brush.

He opened the old trunk and stared at the memories inside.

Please divide this pie into two.

I saw cherry blossoms blooming in the park.

He was crowned with a crown and became a king.

He spread the sheets on the bed.