is that young man good （ ）playing football?A,in B,at C,to

is that young man good （ ）playing football?A,in B,at C,to Many a boy ___ playing football at that time.A.is B.was C.ar She is so good at playing a man that she finds that another 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 is good at ____basketball A Play B to play C playing Although he is young now ,he is good at playing football now Although he is young now ,he is good at playing football Alt football at she playing good is he does well in playing football he is good at playing footb it is time ( ) A .play football .B.to go to bed C .playing g She says that sister is good ____ English.A.for B.at C.to D.