Who was the first african american opera singer to perform as a permanent member of the metropolitan opera in new york?
a. ethel waters
b. duke ellington
c. billie holiday
d. marian anderson

(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.”)

Which excerpt from "hills like white elephants" provides the most details about the main characters' lives outside the railway station? click here to read an excerpt.

Which line of dialogue best describes mrs. x’s sense of superiority over miss y at the begging of the play? a. “if you wanted to shoot me it wouldn’t be so surprising, because i stood in your way.” b. “home is the best of all, the theatre next and children—well, you wouldn’t undertake that.” c. i embroidered them myself—i can’t bear tulips, but he wants tulips on everything.” d. it’s sinful to sit here and make fun of ones husband this way when he is kind and a good little man.”