单选题 Stop ______, boys! It's time for class.
A. talking B. talk C. to talk D. being talking

【正确答案】 A
【答案解析】[解析] 动词stop后只可以用动名词作宾语,表示“停止做某事”,例如:He tried to persuade his father to stop carrying out such a dangerous plan. 他试图说服父亲不要实施那样危险的计划。如果stop后跟不定式,那么该不定式作目的状语,而不是宾语,该结构表示“停下来去做某事”,例如:We stopped (in order) to have a rest. 我们停下来休息一下。