---Tom has been fired by his boss．
--- ? As far as I know, he is a hardworking and considerate fellow．
A. Why not
B. How e
C. What then
D. So what
网友回答
A. Why not
(答案→)B. How e
C. What then
D. So what
解析：
这题考查交际用语：Why not 好啊，How e怎么回事， So what那又怎样，句意是：--汤姆被老板解雇了，--怎么回事“据我所知，他是勤奋，考虑周到的人。选B。