HOW-TO BOOKS APPEAR ONLY BECAUSE _______________ . A. PEOPLE HAVE...
36. How-to books appear only because _______________ . A. people have more free time to spend than before B. people meet more problems than their parents C. people have more choices to make D. modern life is more difficult to deal with Choose the underlined part among A,B, C, or D that need correcting: from 37 to 40