I`m certain I will be there for the Olympic Games in 2008.为什么要用for?

有关英语的从句I'm certain (that the other children will join).I'm certain不是主系表，句子完整了吗？怎么是宾语从句 I`m certain I will be there for the Olympic Games in 2008.为什么要用for? i'm __you can pass the exam A.sure B.certain请详细说明理由 I feel certain that thing will ________ with you in no time .a remain b reduce c increase d improve 这句为什么要加个of,代表啥意思?我用括号标记了I will die in battle (of) that I'm certain.我觉的不加也行挖? what's certain is that i'm still alone. I think I will have a new life in a certain place I'm hardly___to get it done within a week A.probable B.possible C.likely D.certain 不会不要紧,发表下你的意见 1 .Both of my friends kown it.(改为否定句) 2 .I'm certain I will win the1 .Both of my friends kown it.(改为否定句)2 .I'm certain I will win the march （改为同义句） I'm sure to……和I'm certain to……的区别 1.翻译：你们俩有什么共同的爱好吗What —— ——do you both have?2.I bought several books 改为同义句I bought —— —— books3.I'm certain I will be here in time.改为同义句I'm certain—— ——here in time i am certain that i will be on the moon one day 【 同义句 i am certain ____ _____ on the moon I'm afraid I will love you I'm afraid I will love you I’m superwoman.I will come back I’m superwoman.I will come I'm certain I can finish the work on time.(改为同义句) I‘m certain ____ ____ the work on time, Over a hundred people must have been driven away._______they were.A I think B I'm sure C Certain D Of course