A sentence that the sky is getting dark.

As time goes on, the sky becomes gloomy and dark.

The clouds on the horizon gradually darkened and the sky was gradually dyed dark blue.

The sun is setting, the sky is getting dark and the moon is rising slowly.

As night falls, the sky becomes dark and only the stars are shining.

6. The sunset glow on the horizon gradually disappeared and the sky became dark.

7. The clouds on the horizon were dyed deep red, and the sky gradually became gloomy.

8. As the sun sets, it gets dark and everything becomes quiet.

9. The sky is getting darker and darker, which seems to indicate that there will be rain at night.

10 As night falls, the sky becomes dark, and only distant lights are flashing.

1 1. As the night deepened, it became darker and darker, and everything fell silent.

12, the clouds on the horizon were dyed dark gray, and the sky gradually became gloomy and mysterious.

13, as night falls, the sky becomes dark, and only the moon shines on the earth in the sky.

14, the sunset glow on the horizon gradually disappears, the sky is getting darker and darker, and it seems that all life has disappeared.

15, the sun went down, the sky turned dark and everything fell silent.