<正> UI 阅读理解 (C) Habits,whether good or bad. are gradually formed.Wh(?)(?) (?) persondoes a certain thing again and again,he is impe led(驱使)by some unseen force to do the same thing (?)(?)peatedly;thus a habit is formed.Once a habit is formed,it isdifficult,and sometimes impossible,to get rid of.It istherefore very important that we should pay great atten-