(1) Mars's moon, Phobos, has an irregular shape and is best known for its many craters, including one gigantic crater. (2) Deimos also has a number of craters, but some of its surface looks smoother because some of the craters have been filled in. (3) Some scientists believe Mars's two moons are asteroids that got caught by Mars's gravity.
Which of these choices is the BEST topic sentence for the composition?

Ineed is this a good summary for unit 1 lesson 7 draft the summary for the odyssey part 1, the odyssey part 2, the odyssey part 3, or orpheus and eurydice. remember to use your own words and to focus only on important information. orpheus, ancient greek legendary hero endowed with superhuman musical skills. he became the patron of a religious movement based on sacred writings said to be his own. traditionally, orpheus was the son of a muse and oeagrus, a king of thrace. according to some legends, apollo gave orpheus his first lyre. orpheus’s singing and playing were so beautiful that animals and even trees and rocks moved about him in dance. orpheus joined the expedition of the argonauts, saving them from the music of the sirens by playing his own, more powerful music. on his return, he married eurydice, who was soon killed by a snakebite. overcome with grief, orpheus ventured himself to the land of the dead to attempt to bring eurydice back to life. with his singing and playing he charmed the ferryman charon and the dog cerberus, guardians of the river styx. hades set one condition, however: upon leaving the land of death, both orpheus and eurydice were forbidden to look back. the couple climbed up toward the opening into the land of the living, and orpheus, seeing the sun again, turned back to share his delight with eurydice. in that moment, she disappeared. a famous version of the story was related by virgil in georgics, book iv. orpheus himself was later killed by the women of thrace. the motive and manner of his death vary in different accounts, but the earliest known, that of aeschylus, says that they were maenads urged by dionysus to tear him to pieces in a bacchic orgy because he preferred the worship of the rival god apollo. his head, still singing, with his lyre, floated to lesbos, where an oracle of orpheus was established. the head prophesied until the oracle became more famous than that of apollo at delphi, at which time apollo himself bade the orphic oracle stop. the dismembered limbs of orpheus were gathered up and buried by the muses. his lyre they had placed in the heavens as a constellation. the story of orpheus was transformed and provided with a happy ending in the medieval english romance of sir orfeo. the character of orpheus appears in numerous works, including operas by claudio monteverdi , christoph gluck, and jacques offenbach; jean cocteau’s drama and film orphée; and brazilian director marcel camus’s film black orpheus. if you think it needs plz feel free to tell !