Simile examples in maroo of the winter caves

Which sentence from a student's reflective essay contains a subject and verb error and needs to be edited? a. in my opinion, some of the voters seemed to need more information about their candidates. b. the documentary showed that dollars are often used instead of rubles in russia. c. the research shows that jackets made of wool are warmer than those made of cotton. d. in my opinion, either the doctors or the chief administrator need to make a quick decision.

Which kind of narrator knows the thoughts and see all of the charters in the story

What is meant by “eternally burning black pipes”? what is this implying about the personality of the firemen?