答案：Playing in the street is dangerous.
翻譯：在街道上玩耍是危險(xiǎn)的.i,scarf,give,a,to,mother,a,my,birthday,as,present連詞成句加翻譯I give a scarf to my mother as a birthday present. 我送媽媽一個(gè)圍巾作生日禮物。i,have,will,a,birthday,on,party,Friday加翻譯I will have a birthday party on Friday. 我將在星期五舉辦生日聚會(huì)。