In Synonyms^x, Underline^x

Having done a great deal of hand typesetting in my youth, perhaps I can help. Underlining was done with a type-high rule extending across a whole line (column) of type, for instance at the end of a paragraph or chapter. Underscoring required a special font of type that had the underline cast on...

1) What should I replace my work with?-- No title is required for TOEFL essays; if you need a title, it should announce to the reader the topic of your essay.2)the parentless children-- these are not previously mentioned or specific childrenmake their lives better -- what English word means...