承蒙您的邀请，我觉得很荣幸。

I deem it an honour to accept your invitation.

《新英汉大辞典》

承蒙您的邀请，我深感荣幸。

I am very flattered by your invitation.

youdao

承蒙您的邀请，真太好了。

It's very nice of you to invite me.

youdao

承蒙您的邀请，真太好了。

It's very nice of you to invite me.

youdao