It's nothing. (小事情;不足挂齿。)
It's a long story. (说来话长。)
It's about time. (时间差不多了。)
It's incredible. (难以置信!)
It's hard to say. (难说。)
I can't imagine why. (我想不通为什么。)
That can't be. (不可能。)
That's really something. (真了不起。)
Are you sure? (你确信吗?)
Are you crazy? (你疯了吗?)
Excuse me for a moment. (失陪一会儿。)
I mean it. I'm serious. I'm no kidding! (我是认真的。)
I'll consider this matter. (我会考虑这件事的。)
I'll do something about it. (我会想办法的。)
What are you talking about? (你在说些什么?)
I'm afraid I can't. (恐怕我不行。)
I'm dying [很想] to see you. (我真想见你。)
I'm flattered. (过奖了。)
I'm not in the mood. (我没心情。)
I'm so scared. (我怕极了)
I can't make [赶上] it. (我去不了/我赶不上。)
You can never tell. (不知道/谁也没把握。)
I won't buy [相信;接受]
You story. (我不信你那一套。)
It hurts like hell! (疼死啦!)
It can't be helped. (无能为力。)