-How long have you been in the room?

- Just a few minutes. My cousins ___home together with me.

A．have walked

B．had walked

C．walked

D．have been walking

违反治安管理，情节特别轻微的，( )处罚。

A．应当从轻

B．应当免予

C．应当减轻

D．应当减轻或不予