根据下图判断，水资源总量最多和最少的大洲分别是

A．亚洲非洲

B．亚洲大洋洲

C．南美洲欧洲

D．南美洲大洋洲

— Hello, Jackey. I rang you up at this time yesterday evening, but nobody answered.    

— Oh, I _____ the shopping in the supermarket with my mother. [ ]

A. was doing

B. do

C. did