I'd like to .and sing some songs.[a..play the piano b.play the pianos
问题描述：
I'd like to .and sing some songs.[a..play the piano b.play the pianos
答
选A play the piano.
这是一个固定用法,演奏西洋乐器用play 的时候 乐器名称前需要加定冠词the 比如 play the piano,play the violin,play the guitar
球类运动就不用加；如,play football ,play soccer