What do they do?-.A. They are actors. B. They are Chinese. C. They like movies.

问题补充：

--- What do they do? ---.

A. They are actors. B. They are Chinese. C. They like movies.

答案：

解析：情景对话题。句意：他们是干什么的？他们是医生。What do they do?是对身份或职业的询问A. They are actors. 他们是医生 B. They are Chinese. 他们是中国人 C. They like movies. 他们喜欢电影根据语境选A