Categorise the words and phrases.

• Группы
  • In
  • At
  • On
• Варианты
  • September
  • the evening
  • winter
  • autumn
  • October
  • the afternoon
  • 12 o'clock
  • night
  • noon
  • the weekend
  • the end of the week
  • Easter Monday
  • my birthday
  • Tuesday
  • 4th October