—Could you tell me________?

—About two months．[ ]

A．when are you leaving for Shanghai  

B．how often you go to the school library

C．how many tickets have you booked  

D．how long you have been at this school

南洋兄弟烟草公司的创办者之一是( )。

A．容德生

B．简照南

C．周学熙

D．严裕棠