— I haven't finished my task yet.   

— You shouldn't have watched the film last night, or you ____ it by now.   [ ]

A. need have finished        

B. may have finished    

C. should have finished      

D. will have finished

在数据表视图下向表中输入数据，在未输入数值之前，系统自动提供的数值字段的属性是 【6】 。