Задание
Read the sentences. Tick the ones that are appropriate for informal letter.
1) Thanks for your letter!
2) Thank you for your letter of 16 January.
3) Furthermore, it is highly enjoyable.
4) What's more, it's great fun!
5) With whom are you going to the concert?
6) Who are you going to the concert with?
7) Write back soon!
8) I look forward to hearing from you.