А) Отмечать праздник- to celebrate a holiday.
Болтать друг с другом- hang out with each other.
Играть в настольные игры- play boardgames.
Традиционный подарок- traditional present.
Приглашать гостей- invite guests.
В честь победы- in honor of the victory.
б) 1. - You have already sent a birthday card grandmother?
- Yes. I sent it yesterday.
2. - What are you going to do on the 1st of May?
- We'll go on a picnic. The weather will be warm and sunny. Join us.
- Thank you. With pleasure.
3. 9 May we remember those who fought for their homeland.
4. Jim has a birthday tomorrow. He invited a lot of guests. Therefore, the party will be in the garden behind the house. I am sure everyone will like it.