答案：Playing in the street is dangerous.
翻译：在街道上玩耍是危险的.i,scarf,give,a,to,mother,a,my,birthday,as,present连词成句加翻译I give a scarf to my mother as a birthday present. 我送妈妈一个围巾作生日礼物。i,have,will,a,birthday,on,party,Friday加翻译I will have a birthday party on Friday. 我将在星期五举办生日聚会。