If you need to verify other sentences from this specific exercise, you can find step-by-step breakdowns on educational platforms:

For exercise 142 from the 8th-grade Russian textbook by , the focus is on identifying and correctly punctuating appositives (приложения)—a specific type of definition expressed by a noun. Exercise 142 Breakdown

Provides a clear view of the corrected text and the grammatical reasoning behind the punctuation.

Река Кама впадает в великую русскую (река) Волгу. The Correct Answer:

Key Grammar Rules for Exercise 142