您要查找的是不是：
- Are you certain who he is? 你敢肯定他是谁吗？
- Can you really be certain who he is? 你真的能肯定他是谁吗？
- Can you really be certain who he is ? 你真的能肯定他是谁吗?
- I am not quite certain who he is. 我不能肯定他是谁。
- Are you quite certain who she is? 你能肯定她是谁吗？
- Are you certain that it isn't a hoax? 你能确定那不是一个骗局吗?
- Are you certain that you'll get there in time? 你有把握及时赶到那里吗？
- I haven't the vaguest idea who he is. 我一点儿都不知道他是谁。
- Are you suggesting that he is guilty? 你是在暗示他有罪吗？
- Are you certain of what you say? 你对你说的话有把握吗?
- Are you conscious(that) he is not in favor of that? 您知道他不赞成此事吗?
- Are you certain about the answer? 你对这个答案肯定吗?
- I am not certain who he is. 我无法确切说出他是谁。
- Are you certain you are not dialing a right bulk? 你确定你打的号码是对的吗？
- Are you conscious he is not in favor of that? 您知道他不赞成此事吗?
- IF YOU WOULD KNOW, WHO HE IS, YOU MORE WOULD ESTEEM HIM. 如果你知道,他是谁,你更会尊敬他。
- Are you suggesting that he is too old for the job? 你的意思是说他年纪太大了而不能干这工作?
- You know he'll never sell out. That's why he is who he is. 他不会出卖自己的,他就是他。
- I haven't got the slightest idea who he is. 我压根儿不知道他是谁。
- You say he is excel lent, so he is, and so are you. 你说他很优秀,他确实很优秀,你也一样。
