— Would you please repeat the grammar rules again?  

— Of course, but I am sure that you _______ to me carefully, as I have told you twice already.  [      ]

A. don't listen      

B. wouldn't listen      

C. weren't listening    

D. aren't listening

超过( )的多层停车库，其室内消防给水管网应设水泵接合器。

A．三层
B．四层
C．五层
D．六层