--- Why don't you try to do exercise to lose weight?
--- I have tried everything but it has made little .
A. effect
B. result
C. difference
D. conclusion
网友回答
A. effect
B. result
(答案→)C. difference
D. conclusion
解析：考察固定短语。Make a difference起作用。结合句意可知C正确。句意：—为什么你不锻炼来减肥呢？—我已经尝试了所有的事情，但是都没有什么作用。