Answer:
Many of the Roman towns in Britain crumbled away as people went back to living in the countryside. But even after they were gone, the Romans left their mark all over the country. They gave us new towns, plants, animals, a new religion and ways of reading and counting. Even the word 'Britain' came from the Romans.
Explanation:
"A. The ancestor of the dog." is a fragment. When in doubt, say the sentence out loud and ask yourself if there is enough information for the sentence to make sense.
Answer:
it is strong because it explain how the astronaut solved the fuel filter problem
