are you sure什么意思一般怎么回答

　　Are you sure it's all right for me to leave early?

　　你认为我早离开一定没问题吗？

　　'Are you sure?' he asked her.

　　“你有把握吗？”他问她。

　　Are you sure you don't mind?

　　你确实不在意？

　　Are you sure these documents belong together?

　　你肯定这些文件应放在一起吗？

　　Are you sure you're telling the truth?

　　你说的真是实话吗？