1. Not really.并非真的如此。
2. Are you sure?你確定嗎?
3. Are you serious?你是認真的嗎?
4. Are you joking?你不是開玩笑吧?
5. Do you mean it?是真的嗎?
6. Are you kidding?你不是開玩笑吧?
7. I doubt it.我懷疑。
8. It's doubtful!太可疑了!
9. It sounds fishy to me.聽起來很可疑。
10. It sounds suspicious to me.聽起來讓人懷疑。
11 .I won't buy that story.我不信他的話。
12.I won't believe that story.我不相信。
13.Do you think she's serious?你認為她是認真的嗎?
14.I don't take him very seriously.我不把他的話太當真。
15.It's too good to be true.太好了吧,難以置信。