Is there a comma in the sentence 'we thought the pilot jad passed out or it was just a mistake.'

How can you work on building positive relationships?

Now we have "lords of dogtown," a fiction film based on the very same material and indeed written by peralta. not only is there no need for this movie, but its weaknesses underline the strength of the doc.” based on this passage, we can conclude that the author a. prefers documentaries to fictional stories c. likes the movie “lords of dogtown” very much b. prefers the documentary over “lords of dogtown” d. feels that it took too long to make the movie “lords of dogtown”

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.