Despite his doctor's note of caution, he never______from drinking and smoking.
【正确答案】 D
【答案解析】解析：题干：尽管医生有警示，但他从未戒烟戒酒。选项A为“滞留”；选项B为“劝阻”；选项C为“减轻”；选项D为“戒除，远离”。根据题意，本题答案为D。