A past participle is a form of verbs that, if formed regularly, has the form of "stem+ed".
The past participle of "tangle" is "tangled" and the sentence with the past participle is:
I stepped into the middle of the tangled vines.
(actually the last sentence also has a past participle in it, but not only, so I am not choosing it).
Answer:
Of course, parents will always want to know what their children are up to no matter how old they get. However, sending a spy on them is not always the wisest option, especially when it can do damage to your child.
