下面的短文有10处空白，短文后列出12个词，其中10个取自短文，请根据短文内容将其分别放回原有的位置，以恢复文章原貌，将正确选项写到答题卡上。

Life is Difficult

What makes life difficult is that the process of facing and solving problems is a painful one. Problems cause _ 31 _ , anger, fear or despair. These are   32    feelings, often as painful as any kind of physical pain. And since life   33   an endless series of problems, it is___34___      difficult and is full of pain as well as joy.

Yet it is in this process of   35    and solving problems that life has its meaning. Problems call forth our ___36___ and our wisdom. It is only because of problems that we grow ____37___ and spiritually. When we want to encourage the ___38___ of the human spirit, we encourage the human capacity to solve problems, just as in school we deliberately ___39___ problems for our children to solve. It is through the pain of confronting and resolving that we learn. It is for this reason that ___40___ people learn not to fear but actually to welcome problems and actually to welcome the pain of problems.