Напишите химические символы элементов-металлов, известных в средние века (до XVII в.), — золото, серебро, медь, ртуть, олово, железо,

1 Did you miss your friends during Summer holidays?
2 I hope to receive an invitation letter next week.
3 The class book "Enloy English" will help you to improve English.
4 It'll be great to see you all again.
5 Stay with us!
5 Tell us about London, please.