The population is increasing rapidly.

I think yesterday's test was more difficult than ever.

There are many beautiful trees in the park.

She is very beautiful.

She was described as very beautiful.

We had a picnic in the park.

Autumn is my favorite season.

The yellowing of the leaves on the trees in the park is beautiful.

As autumn deepens, the leaves of the trees start to yellow.

Koyo is my best friend.