Put the following parts into proper order to make a complete letter of invitation.
选项：

A: My wife and I have planned a family dinner for him next Sunday evening at eight o'clock so that he can meet some of our friends.
B: We should be delighted if you could join us.
C: Dear Miss Black,
D: Sincerely yours,Jack Smith
E: My brother Tom will be staying with us for a few days during the Christmas holidays.
F: I hope you will let me kow that you can come.