问题
34 —Jack, I want to change my job You know I haven’t achieved anything since I took up teaching — Really? There is not a job considered the best one! As we all know, ______!
A:misfortunes tell us what fortune is
B:all is well that ends well
C:if a thing is worth doing it is worth doing well
D:every profession produces its own best
B:all is well that ends well
C:if a thing is worth doing it is worth doing well
D:every profession produces its own best
正确答案是：
