I REALLY NEED HELP

Dogs make wonderful pets because they us stay happy and healthy. the topic sentence is "dogs make wonderful pets." , is this correct? i keep doubting myself.

9. types of literature that are told from a point of view include autobiographies, memoirs, diaries, and journals.

Listening is also important because you spend more time listening than participating in any other communication activity. in fact, you spend more time listening to others than doing almost anything else. typical americans spend more than 80 percent of any average day communicating with other people l. they spend 45 percent of that communication time listening to others. which sentence states the main idea?