Unit 3　Jnvitationi

Invitations are very common in our daily life.We may，on behalf of our company，invite our business contacts to a dinner，a party or some other activities.On these occasions，invitations should be sent in advance.(https://www.daowen.com)

When an invitation is received，the guest invited，whether accepting the invitation or not，should reply immediately.In the reply，it should be stated clear whether he/she will be present or not.However，if“Regrets only”is written in an invitation，it requires a reply only if the guest invited cannot attend the gathering.