able的名词形式怎么写

句型

1、His ability falls short.

他的能力不足。

2、The acting abilities of both were well-known.

这两个人的`表演才能是众所周知的。

3、Almost everyone has some musical ability.

几乎人人都有一些音乐才能。

4、He had the all-round ability as a director.

他有当导演的多方面才能。