21. When buying the lottery, he may feel______. 
A. lucky   B. hopeful      C. excited       D. hopeless
【解析】选D。推理判断题。根据文章第一段Expecting the same bad luck and disappointment that had befallen him his whole life可知。
22. The last number he chose was______. 
A. 6               B. 7                      C. 24                    D. 9
【解析】选C。细节理解题。根据文章第二段I told her to make it 24可知C为正确选项。