【题目】Having finished her own painting, Mary went on others in the art class.
A. helping B. to help C. with help D. having helped
在线课程【答案】B
【解析】试题分析：考查动词短语。短语go on doing sth继续做某事（同一件事情）；go on to do sth继续做另一件事情；句意“完成了自己的油画油画，Mary继续帮助教室里的其他人。根据句意可知Mary继续做的是另外一件事情，所以使用go on to do sth。故B项正确。