Could you please the piano so loudly? Your brother is having a rest now.A. not to play B.

问题补充：

Could you please the piano so loudly? Your brother is having a rest now.

A. not to play

B. not play

C. don’t play

D. to not play

答案：

A. not to play

(答案→)B. not play

C. don’t play

D. to not play

解析：句意：请你不要这么大声的弹钢琴好吗？你的弟弟正在休息。Could you please do…请你……好吗？是提出建议和请求的句子，could是情态动词，后跟动词原形，否定形式为Could you please not do…请你不要……好吗？故选B。