When the subject is human and plural (here "the children") you can add "-lar" to the verb. You can't do this for non-human subjects though. So "Kedilar gazete okurlar" is wrong (the cats read a newspaper/newspapers).
"It did not occur to me to read" for okur. Gazete is like "gazette", no problem there. Cokuklar . . . hmmmmmm . . . nothing comes to mind, though I'm starting to appreciate the musicality of this language.