My grandfather is good at repairing old pendulum clocks.

The owl is hooting in the night forest.

He joked around and used vulgar language.

He was solving the exam questions without looking away.

This fruit has rotted.

We went down the river by boat.

He puffed out a breath after climbing the long stairs.

After running up the stairs, he breathed heavily.

She loves writing fan fiction.

Recently, his popularity has been increasing.