can you sister play volleyball 为什么play不加s

can you sister play volleyball 为什么play不加s you,sister,your,and,can,well,the,violin,play My sister can play ( ) violin very well Can your sister ____(play) computer games? Can your sister ____(play)the piano? you can play basketball Just play you can What can you play 是Can you sister sing?还是 Can your sister sing? Can you father ride a bike can you sister sing?can your friend play football?can you teacher draw?can your classmates jump high?的意思和回答我打错（you）应该是（your） CAN YOU PLAY FOOTBALL?play 还是playing can you play baseball?还是Can you play the baseball? Can you play soccer,Tony?No,I can not.It is too () for me.Do you have a sister and a brother?Do you have a sister and a brother?No.I () have a brother. can you play the guitar? can you play the piano can you play the guitar? you can play the piano ________ can you play football?