attending、pool party

what about going to attending his birthday party tomorrow? It was such a great fun having attending your birthday party 定语从句单选题there were lots of people attending the party,some of attending circumstance什么意思 I shall be attending the meeting.为什么是attending? swimming pool 英语翻译：pool pool是什么意思 party in the pool&at the pool in the pool和at the pool foreign currency reserve pool