-- Why don’t you try to do exercise to lose weight? -I have tried everything but it

问题补充：

---- Why don’t you try to do exercise to lose weight?

---- I have tried everything but it has made no .

A. use

B. result

C. conclusion

D. difference

答案：

A. use

B. result

C. conclusion

(答案→)D. difference

解析：考查词义辨析。Use 用途，result 结果，conclusion 结论，difference 不同，句意：你为什么不试着锻炼身体减肥呢？我已经什么都试过了，但是没有什么不同。所以选D。