High above, the entire sky had become black, and currents of air were beginning to surge.

By night, the wind goes away and the sky becomes brilliantly clear.

Something about the movement of the man stirred a curious, unpleasant memory, and for the first time he saw how dark the sky had become.

The sky, which had been blue and clear, became by degrees overcast.

I realized then that the sky had become markedly brighter.

The sky became as black as night and the stars came out.

All face the stage, which is what the sky becomes when the birds are flying.

A cold wind had risen and the sky was becoming foggy.

The closer it got to midday, the brighter the sky became.

I fear that the skies are becoming a new Wild West.