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- I am afraid I can not be positive about the time when the car exploded. 恐怕我无法肯定汽车爆炸的时间。
- Oh, I am not so sure about that. 我对这个问题没多大把握。
- I am sorry I do not know anything about that. 很抱歉这事我一点儿也不知道。
- I am still dubious about that plan. 我仍然对那个计划拿不准。
- I am positive that I gave you his address. 我肯定把他的地址给你了。
- I am positive that he is correct. 我确信他是正确的。
- I was just wondering about that myself. 我就是觉得这件事莫名其妙。
- I am positive that this merchandise will sell! 我相信这商品一定畅销!
- I am extremely glad to hear about that. 听说此事,我极为高兴。
- I am not at all convinced about that. 我根本没法确信此事。
- I am really very enthusiastic about that. 我确实对此有强烈的兴趣。
- I am afraid I can not be certain about that. 恐怕此事我不能肯定。
- I am not in a position to say anything about that. 关于那件事,我不便说任何话。
- I am sorry to differ from you about that question . 对不起,关于那个问题我与你的看法不同。
- I am not really sure about that. 对此我确实不能肯定。
- I am quite convinced about that. 对此我很相信。
- I am a hundred per cent certain about that. 对此我百分之一百的肯定。
- I think I am very happy about that. 我对此很高兴。
- I am going to read a book about that big city. 我要读一本关于那个大城市的书。
- I am not quite clear about that. 我对那件事情不太明白。