真的？
Really? *“真的嗎？”。詢問對方的語氣，也常說Oh, really?
He's 38. （他38歲。）
Really? （真的？）
Are you sure? *“敢肯定嗎？”，想要確認的心情，要比上句稍強。
你是認真的嗎？
Are you serious?
I want to break up with you. （我想和你分手。）
Are you serious? （你是認真的嗎？）*有些懷疑對方的語感。
開玩笑呢吧？
Are you joking?
I quit my job. （我把工作辭了。）
Are you joking? （開玩笑呢吧？）
Do you mean it? （是真的嗎？）
Are you kidding? （是說著玩吧？） *kid 常來表示“耍弄，開玩笑”。
我懷疑。
I doubt it. *表示對別人的話抱有懷疑的心情。
Do you think you'll get a raise? （你覺得你能漲工資嗎？）
I doubt it. （我懷疑。）
It's doubtful!
I don't think so. （我不這樣認為。）
I wouldn't bet on it.
It's chancy. *俚語。
It's iffy. *非常隨便的說法。
聽起來可疑。
It sounds fishy to me. *fishy 除了表示“魚的，像魚的”之外，它還有“靠不住的，可疑的”意思。
What do you think? （你怎么想？）
It sounds fishy to me. （聽起來很可疑。）
It sounds suspicious to me.
It sounds funny to me.
Something's fishy.
I smell a rat. *smell a rat 為短語，表示“感到有可疑之處”、“事情很可疑”的意思。
我不信他的話。
I won't buy that story. *此處的buy表示“相信（believe），當真”，而不表示“買”，口語中常用。
He said she is his sister. （他說她是他的妹妹。）
I won't buy that story. （我不信他的話。）
I won't buy that story. （我不會信他的話的。）
But, it's true. （可那是真的呀。）
I don't buy it.
I won't believe that story.
你認為她是當真的嗎？
Do you think she's serious?
She told me she likes you. （她告訴我她喜歡你。）
Do you think she's serious? （你想她是認真的嗎？）
我不把他的話太當真。
I don't take him too seriously.
I don't pay much attention to what he says. *pay attention to…“對……嚴加注意”、“對……留意”。
I don't take him very seriously.
我不相信他。
I don't believe him.
I don't believe him. （我不相信他。）
What makes you say that? （你為什么這么說呢？）
I don't trust him.
I don't think he is telling the truth. （我認為他沒說真話。）
I think he is lying. （我認為他在說謊。）
有這么好的事！
It's too good to be true. *直譯是“說得太好了”，表示事情或情況好得過分。
I won two tickets to Hawaii! （我贏了兩張去夏威夷的票。）
It's too good to be true. （有這么好的事?。?BR> It's so unbelievably good that there has to be something wrong. （哪有這么便宜的事?。?BR> Nothing this good ever happens, it must be a mistake. （不會有這么好的事，一定是搞錯了。）
It can't be! It's too good to believe! （怎么可能！好得讓人難以置信。）