题目内容：

阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

It is a great1.(true) that life is difficult. Once we really understand and accept it, then life is no longer difficult. 2., most of us do not fully see it. They just complain about their problems and difficulties as if life should be easy.

3.makes life difficult is that the process of facing and solving problems is a really painful one. Problems, 4.(base) on their nature, cause sadness or regret or anger or fear. These are 5.(comfort) feelings, often as painful as any kind of physical pain. It is in the whole process of solving problems 6. life has its meaning. Problems are the serious test that tells us success from failure. When we want to strengthen the growth of human spirit, we encourage the human ability 7.(solve) problems, just as in school we set problems for our children to deal with. 8.(learn) from the pain of meeting and working out problems is9.great benefit. As Benjamin Franklin said, “Those things that hurt, instruct.” For this reason, wise people learn not to fear but to welcome10. pain of problems.