

Christmas is in December.
[ˈkrɪsməs ˈɪz ˈɪn dɪˈsɛmbər.]
It snows a lot in December.
[ɪt ˈsnoʊz ə ˈlɑt ˈɪn dɪˈsɛmbər.]
Are you busy in December?
[ər jə ˈbɪzi ˈɪn dɪˈsɛmbər?]
"December" is in the lesson "Months and days" (Level 7), along with 18 other useful words. LinDuo has 180 topic lessons like this one, 2,375 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.