The following selections have topic sentences (main ideas) that may appear at any place within the paragraph. Identify the topic sentence of each paragraph by choosing the answer with correct sentence number. 1 Often when older children move back home , unpleasant tensions and disagreements arise. 2 However , adul t children who move back home can avoid family conflicts by following some tips. 3 First , they should contribute what they can-and it need not be in terms of money: Being productive family members will help them earn their keep. 4 This can involve tutoring or coaching younger sisters or brothers , or helping Mom and Dad with chores and errands. 5 Second , these “returnees” should not expect their parents to rescue them from difficulties. 6 As adults , they are responsible for getting out of their own scrapes-and for trying to avoid them in the first place. 7 Last , they must respect their parents’ lifestyles and own needs for independence. 8 It is unrealistic to expect parents’ lives to revolve around the needs of a grown child , in the manner they may have when the child was younger.