Put the items into the correct group according to their style: formal or informal.

• Группы
  • Formal style used in essays
  • Informal style used in emails
• Варианты
  • full sentences
  • short sentences
  • no imperatives
  • no abbreviations
  • no phrasal verbs
  • passive voice
  • no idioms
  • no contractions, e.g. I would
  • imperatives
  • abbreviations
  • phrasal verbs
  • active voice
  • idioms
  • contractions, e.g. I’d