In 'He was driving the car', the verb is active.

在He was driving the car一句中，动词是主动语态。

《牛津词典》

E.g., "John throws the ball" is active voice. The doer of the action, John, precedes the verb.

例如，“John投球”是正面的语气，动作的执行者John放在动词前面。

youdao

Squeak a sentence is in the active form when the action stated by the verb is performed by the subject.

如果动词描述的动作是由主语发出的这句话就是主动语态。

youdao

Anything goes here, with the possible exception of plastic bags: green is an active verb in San Francisco, and composting is mandated by city law.

BBC: A perfect day in San Francisco