单选题 His doctor has told him he mustn"t drink, but he still has the occasional brandy ______.
【正确答案】 B
【答案解析】[解析] A项，“on the spot”意为“在场，立即、马上”；B项，“on the sly”意为“诡秘地，偷偷地”；C项，“in nature”意为“实际上，无论如何、根本”；D项，“in short”意为“简言之”，由句意可知，“他仍偶尔偷偷地喝上几口白兰地”，因此选择B。