— What were you doing at 8:00 pm last night?         

— I ______.        [ ]

A. slept      

B. sang        

C. were eating    

D. was sleeping

物业服务企业可通过（）的途径加强与业主的沟通。

A.灵活务实，互谅互让

B.有效的处理业主投诉

C.主动上门了解业主

D.开辟各种宣传园地

E.开展丰富多彩的社区文化活动