问题
选择题
--- 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
答案
答案：C
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。