actress的前面用什么冠词

前面用冠词the或者an，例如：

1、Here is an actress who could have her pick of any part这是一个角色任她挑选的女演员。

2、Jane is determined to stake her claim as an actress.简决心主张自己作为一名女演员的权利。

3、He was very frank about his relationship with the actress.他对自己和那位女演员的关系直言不讳。