一、邀请信 
1、I"d like ...to come to dinner 

非常希望...共进晚餐 

2、request the pleasure of 

恭请... 

3、The favor of a reply is requested 

敬赐复函 

4、May I have the honour of your company at dinner? 

敬备菲酌，恭请光临 

5、Thank you for inviting us to dinner 

谢谢您邀请我们共进晚餐 

6、I hope you"re not too busy to come. 

我期望您会在百忙中光临 

7、The reception will be held in ...,on ... 

招待会定于...在...举行 

8、We sincerely hope you can attend 

我们期待您的光临 

9、We are looking forward to ... 

我们期待着.... 

10、We have decided to have a party in honor of the occasion 

为此我们决定举办一次晚会 

11、Please confirm your participation at your earliest convenience 

是否参加，请早日告之