mary is good at[ ]the piano A.play b.plays c.playing d.to pl

mary is good at[ ]the piano A.play b.plays c.playing d.to pl he is good at( ) basketball A.playing B.play C.plays D.to pl He has much time____ the piano a.play b.plays c.playing d.to I often watch him ( )tennis.A.playing B.play C.plays D.to pl Let's the piano.A.playing B.play C.plays I'm good at basketball.A．play B．plays C．playing D．to play Mary is good at playing the piano.（改为同义句） Mary（ ）well（ ）play ___ with fire is dangerous.A.play B.playing C.played D.To pl When I saw Mary,she ______ on the piano.选项:a、is playing b、pl We'd like to hear Jane ____ the piano.A.play B.plays C.playi _____ soccer is for the young.A.Play B.Plays C.Playing D.Pla he’s used to （）in the afternoon.A.play B.plays c.playing D.p