题目内容：

根据首字母，选择适当的已学单词填空

1.The project was predicated on the a_________ that the economy was expanding.

2.I'm only worried about his attitude to the job; his c_________ is not in question.

3.I have to go now because I must be p_________ for class.

4.Officials should never be allowed to abuse their a_________ and position.

5.His anger s_________ from his suffering at the loss of the most important love he had ever known in his life.