If you finish your homework,you can go outside to play balls.如果你完成了你的家庭作业,你就可以出去打球 或者用not...until(直到...才) You can't go outside to play balls until you finish your homework.直到你完成了你的家庭作业,你才可以出去打球
you can not go outside to play ball until you finish your homework. if you finish your homework,you can go outside to play ball . you can go outside to play ball after you finish your homewor...