

Посмотри, какое синее небо!
Look how blue the sky is!
Почему небо сегодня такое серое?
Why is the sky so gray today?
Вечером небо было совсем красное.
In the evening the sky was completely red.
"небо" is in the lesson "Nature" (Level 21), along with 11 other useful words. LinDuo has 180 topic lessons like this one, 2,380 words in total. Every word has an illustration, a transcription and pronunciation in a female and a male voice. Just 10–15 minutes a day is enough to learn them all. Free, and works offline.