人称

I was witness to one of the most amazing comebacks in sprinting history.

我目睹了短跑历史上最令奇的东山再起。

Opposition campaignerssaid that they were attacked by MPLA activists in several provinces.

反对派竞，在一些省份他们遭到MPLA分子的袭击。

Verb and subject must agree in person.

词与主语必须一致。