在利润中，对主营业务要求详细列示其收入、成本、费用对其他业务只要求简略列示其利润，这一作法体现了______。

- Did you attend Tom’s birthday party at the Grand Hotel?  

- I wish I _______. I _______ an English lecture in the school hall.   [ ]

A. have; gave    

B. did; have given        

C. do; had given         

D. had; was giving