问题
I believe Tom to be a great businessman like Bill Gates in the future. —Why do you think so? —Because he is ________ in business.
A:as hungry as a lion
B:as sharp as a spear
C:as busy as a bee
D:as sly as a fox
B:as sharp as a spear
C:as busy as a bee
D:as sly as a fox
正确答案是：
