—It took me ten years to build up my business, and it almost killed me.
—Well, you know what they say. .
A. There is no smoke without fire
B. Practice makes perfect
C. All roads lead to Rome
D. No pains, no gains
网友回答
A. There is no smoke without fire
B. Practice makes perfect
C. All roads lead to Rome
(答案→)D. No pains, no gains
解析：考查交际口语。由上文可知，是“不劳无获”。