【单选题】

Time management

Until recently, books on how to manage your time at work were seen as a bit of a joke in the business worlD、Many were enjoyable to read (29) weren’t taken seriously. (30) told their readers to dress well, be positive, decide (31) they were going and then use (32) valuable minute to make sure they got there. One very successful book, first published twenty years (33) and still available in bookshops, is The One-Minute Manager. It tells the story of a keen young man who wants to learn (34) about how to be a top-performing executive. The authors believe that most people (35) the day putting (36) problems, or when they do try to solve (37) don’t do enough.According (38) the authors, having achievable targets should be a manager’s aim. Managers everywhere should read (39) book carefully, in order to benefit from (40) sensible advice.
A．some
B．all
C．every