Group the words and expressions according to their categories.

• Группы
  • Informal English
  • Formal English
• Варианты
  • Dear Jimmy,
  • Dear Sir/Madam,
  • Best wishes,
  • Yours faithfully,
  • To sum up,
  • To summarize,
  • I look forward to hearing from you.
  • Hope to hear from you soon.
  • go on
  • continue
  • It's OK.
  • It is acceptable.