The boys in our class always play basketball on the playgrou

The boys in our class always play basketball on the playgrou Boys in our class like to play basketball (on the playground There are three more boys playing basketball on the playgrou the teacher noticed him ____(play)basketball on the playgrou the boys in our class enjoy playing basketball.对playing bask Look!The boys ____(play)basketball on the playgrould. I often play basketball on the basketball court after class. John isn't in the classroom,he ()play soccer on the playgrou After class,many boys like playing basketball on the p_____ I saw the students ------- (play) volleyball on the playgrou they always play basketball ( ) the playground.用in还是on还是at呀, at class some students play basketball on the playground