动名词作主语：Playing the piano... — 英语选择题
题目
音乐活动结束后，莉莉想写一句话，表达“弹钢琴让她和朋友们开心”，并让“弹钢琴”作主语。哪句话符合要求？A. Playing the piano make Lily and her friends happy. B. Playing the piano makes Lily and her friends happy. C. Lily and her friends makes playing the piano happy. D. Play the piano makes Lily and her friends happy.