unaccusative

the bus arrived late due to traffic.

the flowers bloomed in the spring garden.

the leaves fell from the trees in autumn.

the sun appeared over the horizon.

the student arrived at school early.

the accident happened on the highway.

the price increased significantly.

the child fell down on the playground.

the star appeared in the night sky.

the door opened suddenly.

the snow melted in the warm sun.

the patient died peacefully in the hospital.