Who is that girl (plays playing play is playing) the piano o

Who is that girl (plays playing play is playing) the piano o Who is the girl playing the piano on the square? （ ） the girl is playing the piano? mary is good at[ ]the piano A.play b.plays c.playing d.to pl That girl is very excited about playing the piano.为什么excited 改错题1.The girl is good at playing a piano 2.That red bus stop Is this girl playing the piano .作肯定回答 The girl is good at playing a piano. she is playing the piano.playing the piano划线提问 Let's the piano.A.playing B.play C.plays is the girl are playing the piano?这句话为什么要用are playing谢谢! look!the girl (play/is playing )with a cat.