十万火急!You can't play football here.改为祈使句.这句话是意思是什么?

十万火急!You can't play football here.改为祈使句.这句话是意思是什么? You can't play football here（改为祈使句） You can’t play football here（改为祈使句） You mustn't play football here.(改为祈使句) You can't play football inthe street改为祈使句 You can't play the violin here改为祈使句 You can't play soccer ball here 改为祈使句 You can't play ganes here. 改为祈使句 把You can't play fooball here改为祈使句 You can't sit here.改为祈使句 you can,t wait here改为祈使句 You can‘t smoke here改为祈使句