— What were you doing at this time yesterday?

— I _______ basketball with my friends. [ ]

A. was playing

B. had played

C. have played

D. played

某饭店2005月5月份餐饮经营的主要数据如下：营来收入90万元，原料成本40万元，饮料成本5.5万元，人工工资3.6万元，广告费0.2万元，维修费0.3万元。据此，该饭店5月份餐饮销售的毛利率应是（）。

A．44.89%　　

B．45.22%

C．49.44%　

D．55.55%