Now , you are to board the plane.We ' re sorry that we haven't done much to help you when you stayed in China .   I appreciate what you have done for me.Everything I have seen here has left a deep impression on me . I really don't know how to express my thanks to you .   We are ready to help you .   Will you be kind to say " Thank you " to Mr.Zhang and other friends for me ?   I'd like to . I'm sure your visit will help to promote the friendship and understanding between both of us.Welcome to China again .   Of course , I will.Well , it's time for me to say goodbye.The plane will take off soon.Hope some day you will come to America for a visit .   Thank you . I will if I have chance.Goodbye and happy landing ! 