Which statement about social networking is true? It’s important to use correct grammar and punctuation in posts. It’s smart to friend as many strangers as possible to widen your network.
Posting about your vacation while you’re there helps you stay in touch.
You should never post anything you wouldn’t want a potential employer to see.

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.