题目

Everyone in their class_________ after-school activities.A. enjoys to do B. enjoys doing C. enjoy to do D. enjoy doing 答案：【答案】B【解析】句意：他们班里的每个人喜欢参加课外活动。enjoy doing sth喜欢做某事，主语everyone是第三人称单数，故谓语用第三人称单数，故选B。下列是魏晋南北朝政权变迁简易示意图。按照时间发生先后排列，正确的是A. 甲丙乙丁B. 甲乙丙丁C. 乙甲丙丁D. 甲乙丁丙