Dogs serve man in many ways. They serve as watchdogs at homes. They save people in burning houses. They also save drowning people and used as guides for the blind. 1. What is the main idea or the topic that the paragraph tells? A. about dogs C. about helping people B. about saving homes D. about characteristics of dog 2. What do you think is the key sentence? A. They serve as watchdogs at homes. C. Dogs serve man in many ways. B. They save people in burning houses. D. Dogs are better pets than cats. 3-5. Which are the supporting details in the above paragraph? Choose 3 answers and encircle it. Dogs serve man in many ways. They serve as watchdogs at homes. They save people in burning houses. They also save drowning people and used as guides for the blind.