For the adverb I would say "cautiously".
Explanation:
Harry Bittering and his family are among the first thousand Earthmen to move to Mars for the purpose of colonizing it. Yet Bittering feels out of place in his new home. His uneasiness is so profound that he wants his family to return with him to Earth. He has decided that Mars is meant to be inhabited only by Martians.
Answer:
After <em>living room </em>and before <em>It is important</em>... you need a period.
Capitalize your i's
Jessica listen to a grieving friend with great concern.