每日一句 英语句子

I have my doubts about it.

我对此有疑问。

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今天的几个句子还是有关表达不确定的：1.I wonder if she will come. 我不知道她是否会来。2. I'm not at all convinced.我根本无法确信。3. I'm afraid it's questionable if he will succeed.我认为他能否成功还不能确定。4.There is some doubt in my mind about his success.我对他能否成功心存疑虑。