I have been to Quebec.

I heard the sound of someone knocking on the door.

Someone is knocking on the door.

He put the matchbox in his pocket.

I found a yellow darter in the park.

I saw a red squirrel in the park.

I saw a red squirrel in the park.

A yellow darter is flying over the pond.

Looking at it overall, I think this project is a success.

He exercises every day, so he always feels well in mind and body.