根据对话的内容在括号内填上适当的句子.
A：Excse me,1( )
B:Sure.What's the matter?
A:2( )
B:OK.Let me see.Oh,the printer isn't connected to the cimputer.
A:Can you help me connect it to the computer,please?
B:3( ).This is the information line,and this is the power line.
A:Oh,the computer says there is new hardware.
B;Do you have a CD of drivers?
A;Yes,4( ).
B:OK,the printer can work now.
A:5( )
B:Not at all.