34. Я чит а ю журн а л, A journal is what I am reading. It is the direct object of my reading. It is in the accusative case. Журнал is masculine, and therefore the ending does not change from the nominative.
35. а ты чит а ешь газ е т у. A gazette (newspaper) is what you are reading. It is the direct object of your reading. It is in the accusative case. The ending has changed from -а of the nominative case to the -у of the accusative.