(2) A positive attitude means a positive view of life. When we are positive, we look on the bright side of everything and keep thinking good thoughts. However, a negative attitude means __26.__ bad thoughts. For example, a man who is very sick may keep thinking about his sickness as a bad thing and his negative attitude will keep him from being cured. Such a person is always unhappy as he finds something wrong or bad with every __27__ of his life. As a result, he is unable to even work well. __28.__, a sick man who thinks happy thoughts believes that he will soon be well again. Such a person who has a positive attitude is always happy and tries to make what he does better.  From the above, we can see __29.__ to have a positive attitude. So, we must choose to be happy, find ways to smile, and read books and stories on positive thinking. It is never __30.__ late __30.__ have a positive attitude. It will help us deal with many problems in life.
【題組】26)
(A)to thinking
(B)think
(C)thinking
(D)to think