What is the meaning of Vilify

What is the main idea of this paragraph

Which event occurred in the nearly two-year time span between act 3 and act4 of the tragedy of julius caesar?

Choose the sentence that is not logically connected in the paragraph. (1) one final effect of radio and tv on the language must must be noted. (2) there is no doubt that these great media of information have cut down considerably the time that used to be devoted to reading. (3) radio and tv may enhance the spoken word. (4) they tend to lower comprehension levels.