补全对话。根据对话内容，从对话后的选项中选出能填入空白处的最佳选项。
----Officer , I have something important to report. I have just had my money stolen.
-----_______
------Ok. Thank you
-------You’re welcome._____
------About ten minutes ago
------And where was it stolen?
--------    I saw somebody had been following me from the time I left the bank..
------The bank?
------Well , you see , I went to the bank to exchange some traveler’s cheques for money.
--------                     
------How much did you exchange?
------About 450 dollars
-------         
--------All of it
-------I see

A．And how much was stolen?

B．Before, you begin, why not take a seat and calm down a little?

C．It was probably on the moving stair coming up from the underground.

D．I can’t remember clearly.

E. how does it happen?
F. when did it take place?
G. so I can buy my airline ticket back home.