完成下列对话：______。
A:
A:I hope I can meet you next Monday.
B:
B:I am afraid I won't be free next Monday. I have a previous engagement.
A:______ Tuesday
C:
B:That would be all right.
A:Then, I'll ______.
A:What about；come to your office at four
D: What about；go to your office at four
E: What do you think of；come to your office at four
F: What do you think of；go to your office at four