The following sentences carry different kinds of errors. revise them 1. We met the girl at the bus terminal who has stood first from her class.
2. After milking the camel, the donkey was fed.
3. At the age of eight, my mother first took me to the circus.
4. Berhan plans to study electronics and then working in his uncle’s plant in Addis.
5. Chaltu is a painter of great skill and who uses colour in dramatic ways.

Can someone explain this to me clearly plz

(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.”)

Based on her speech in the excerpt ,what can we infer about francesca