one of them后面加什么

　　例句：

　　One of them unwound a length of rope from around his waist.

　　他们中的一个人解开绕在他腰间的一条绳子。

　　It is amazing that not one of them saw the writing on the wall.

　　令人吃惊的是他们就没有一个人看出大难临头的预兆。

　　I was half tempted to give one of them a clout myself.

　　我几乎都想亲自去把他们当中的一个打一顿。

　　He gave one of them a lighter.

　　他把一个打火机给了他们中的一个。