今晚将播出三部关于癌症的纪录片中的第一部。

Tonight sees ___the ___first of three documentaries about cancer.

她是最早到达的人之一。

She was one of ___the ___first to arrive.

他是第一个承认自己的成功很大程度上归功于英俊外貌的人。

He is ___the ___first to admit that much of his success is due to his good looks.