Read the following paragraph, find out the topic sentence
We now have, as a result of modern means of communication hundreds of thousands of words flung at us daily. We are constantly being talked at, by teachers, preachers, salesmen, public officials, and motion-picture sound tracks. The cries of advertisers pursue us into our very homes, thanks to the radio-and in some houses the radio is never turned off from morning to night Daily the newsboy brings us, in large cities, from thirty to fifty enormous pages of print, and almost three times that amount on Sunday. We go out and get more words at bookstores and libraries. In this modem world,words fill our lives