Unit 5 Self-test(10分) 试卷总分:100 得分:100 一、选择填空:阅读下面的对话或句子,从A、B、C三个选项中选出一个能填入空白处的最佳选项。 1.—Oh. But why didn’t he just own up and tell someone — A.So be careful with our job. B.He was too scared that he would be fired, I suppose. C.You should have told him that ear…