--- It took me nearly 5 years to make a breakthrough in my field.
--- Well, you know what people 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
D解析考查谚语。A无风不起浪；B熟能生巧；C条条大路通罗马；D不劳无获；根据句意可知应该选D，强调要付出努力。句意：—花了我几乎5年时间才在我的领域取得突破。—你知道人们说过的话：不劳无获。（付出了努力才会由收获）。