Hm, are you sure you got the question right? Because all of the sentences are written in active voice! Active voice is essentially everything that is not in the passive voice, and I don't see any passive voice here.
Passive voice would be formed with subject+form of "to be" + past participle,
and we have no example of this. All of the sentences here are in active voice.
Answer: The example of personification is in the sentence: He struggled up to the surface and tried to cry out, but the <u>wash from the speeding yacht slapped him in the face</u> and the salt water in his open mouth made him gag and strangle.
Explanation: The ability to <u>slap</u> someone in the face is a human characteristic.
Another possible example:
There was a chance that his cries could be heard by someone aboard the yacht, but that <u>chance was slender and grew more slender </u>as the yacht raced on.
Slender is an adjective usually used to describe a person's waist or arms. The word is also used to describe other things such as "a slender majority of voters" or "a slender chance of winning"
The hypocrites were the leading characters. The roles were always played by men. If the play had a female part, the parts were usually played by young men with higher voices.