Thank you very much for everything you have done for me during my stay in China .
happiness
user
And I must thank you again for your generous help .
happiness
assistant
The help is mutual . I must thank you to see me off . My wife and I will be looking forward to seeing you . You will come to see us , won't you ?
happiness
user
I promise I will take the first chance to call on you . Please send your wife with my best regards .
happiness
assistant