Told can indeed be a participle or a verb, depending on the context.
Here it's verb: it's a past tense of "tell".
It could be a participle if the sentence were as follows:
I puffed by cheeks to get rid of the hiccups, told by my cousin to do so. (it's a weird formulation but not incorrect I believe)
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Answer:
Yes
Explanation:
Why? Well because hiding Jews in the first place wasn't very safe at all for anyone. They had the risk of getting caught by the Green Police.
Answer:
a group of lines( forming the basic recurring metrical unit in a poem )