I got lots of error when i tried to install zenity

[micovid]

I think it's a problem in source list. I accidentally changed there some settings.
here's the problem:

rootakali: # sudo apt-get install zenity
E: Type 'sudo' is not known on line 12 in source list /etc/apt/sources.list
E: The list of sources could not be read.
E: Type 'sudo' is not known on line 12 in source list /etc/apt/sources.list
E: The list of sources could not be read.

Thanks in advance