翻译：我现在正忙着呢,你最好请别人和你玩 I'm busy now,so you ’d better ask( )with you.

别人的英语是 someone else
I'm busy now,so you ’d better ask (someone else to play) with you.
不过,比较委婉的说法是
I'm tied up right now,please ask someone else to play with you.