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Analyzing sentences for commas

I need to focus on choosing exactly three sentences for the task, as the textbook likely expects that. So, I’ll inspect the typography and punctuation in the provided text. There are four sentences with missing commas that I notice: before "подкреплённой," "связанный," after "человеку," and after "людей." The task requires three, but should I pick any three? I’ll double-check if any sentence isn’t considered an обособленное определение based on the grammar rules to make the right choice.Identifying participial phrases

I am analyzing four sentences for participial phrases. The first sentence has a phrase following the noun "черта," which is correctly detached. The second sentence also contains a detached phrase. For the third sentence, the noun is in the dative case, but it still maintains the detached phrase, so it works. The fourth sentence has a participial phrase needing separation. Yet, why do I need to choose only three? Perhaps the image text specifies one of three expectations; I need to determine that.Considering robust definitions

I think I can say, "Подойдут, например, следующие три," which means "The following three will work, for example." To be thorough, I might mention a fourth option that has a specific definition as well. However, the assignment specifically asks for three, so I don’t want to confuse things too much. It seems important to stick to what's requested while still offering solid information. Let's aim for clarity here!