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(1) fire extended humans’ geographical boundaries by allowing them to travel into regions that were previously too cold to explore. (2) it also kept predators away, allowing early humans to sleep securely. (3) fire, in fact, has been a significant factor in human development and progress in many ways. (4) other obvious benefits of fire are its uses in cooking and in hunting. (5) probably even more important, however, is that learning to control fire allowed people to change the very rhythm of their lives. (6) before fire, the human daily cycle coincided with the rising and setting of the sun. (7) with fire, though, humans gained time to think and talk about the day’s events and to prepare strategies for coping with tomorrow. the sentence that expresses the main idea is: (type the number of the sentence. then click “go.”)

Read the excerpt from ernest hemingway’s “soldier's home.” his father was in the real estate business and always wanted the car to be at his command when he required it to take clients out into the country to show them a piece of farm property. the car always stood outside the first national bank building where his father had an office on the second floor. now, after the war, it was still the same car. nothing was changed in the town except that the young girls had grown up. how does hemingway’s description of the town as unchanged impact the readers’ perception of krebs? it emphasizes that while the town has remained the same, krebs has changed. it illustrates that krebs despises the town he grew up in because it is boring. it demonstrates that krebs views himself as similar to the other soldiers from his town. it reveals that krebs is jealous of those who were able to stay in town and avoid the war.

What does the candle symbolize in this excerpt from leo tolstoy’s the death of ivan ilyich? “when i am not, what will there be? there will be nothing. then where shall i be when i am no more? can this be dying? no, i don’t want to! ” he jumped up and tried to light the candle, felt for it with trembling hands, dropped candle and candlestick on the floor, and fell back on his pillow. a. ivan ilyich’s shallow lifestyle b. ivan ilyich’s troubled conscience c. ivan ilyich’s murky past d. ivan ilyich’s approaching death