表达志愿服务经历的句型 — 英语选择题
题目
米娅两年前开始在动物中心做志愿者，现在仍在那里服务。哪句话能准确表达她的志愿服务经历？A. Mia has volunteered at the animal center for two years. B. Mia volunteered at the animal center for two years. C. Mia has volunteer at the animal center for two years. D. Mia is volunteering at the animal center for two years.