Thank you for inviting me to……感谢您邀请我参加……
I look forward to attending.我期待着参加。
Can I bring along a friend?我可以带一个朋友去吗?
Do you need me to bring anything?您要我带什么东西吗?
Let me know if it's alright to bring my children.请告诉我是否允许带孩子去?
Unfortunately, I am unable to attend.真不巧,我没办法参加。
I have a prior engagement.我此前有约了。
We wish you a successful event.预祝你们的活动成功。
Dear Jonathan,
Thanks for inviting me to attend the company picnic this Saturday. I think it will be a lot of fun.Is it alright if I bring my family along?Do you need us to bring anything?Just let me know.I'm looking forward to it.
See you Saturday.
Bill
感谢您邀请我参加贵公司在本周六举办的野餐活动。我想那一定会非常有意思。我可以带家人一同前往吗?需要我带什么东西吗?请尽管告诉我。期待着您的回复。
Dear Mr. Snow,
We wish to thank you for your invitation to attend your company's 50th anniversary party. Unfortunately, we will not be able to attend this event due to a prior engagement.We wish you a successful event and congratulate your company for its achievements.
Sincerely,
Liu Wencong
感谢您邀请我们参加贵公司50周年庆典晚会。不巧的是,我们此前已有约,所以没法去参加活动了。我们预祝晚会成功,并恭贺贵公司所取得的成绩。