英语 no one knows for sure, and making prediction

英语 no one knows for sure, and making prediction NO one knows for sure,and making predictions is a risky busi no one but" wrong" way corrigan knows for sure翻译 英语翻译（1）No one knows for sure when advertising first started. No one knows for sure when the first people arrived in ____ But no one knows for sure how much crude oil lies buried ben no one knows for sure what use can be made of the computer i knows,one,no,his,name(.)英语造句, 大学英语二中的单选题 31.The meeting ( ) for five hours.No one knows wh No one knows No One Knows 歌词 No one knows( )