I am afraid that I can not be certain about that.

I am afraid that I can not be certain about that. I am afraid that I can not catch 和I am afraid I can not catc I am certain that I can run faster than you . I am certain that I can run faster than you（同义句）I am certain afraid,i,that,can,get,am,i,not,up 怎么连接 I afraid you not am that can the open windoe怎样连词成句? i、afraid、you、not、am、that、can、the、open、window组合造句排列. I am afraid that和I am afraid not 的区别 i am not that I am afraid that I can't 中的that can't 在句中做什么成分 i Am afraid that i can't恐怕不行 这句中间为什么加一个that I am afraid you can not!