Are you interested in the piano Alice ?A. playingBto playC. playedD. play

问题补充：

Are you interested in the piano, Alice ?

A. playing

Bto play

C. played

D. play

答案：

(答案→)A. playing

B. to play

C. played

D. play

解析：考查固定搭配。“对......感兴趣”be interested in sth./doing sth.，in是介词，故用动名词。句意“爱丽丝，你对弹钢琴感兴趣吗？”故选A。