Sentence:  `` You are bound to get involved with people when you have children '' , Fran had told me at our first meeting , `` so it <WSD>is</WSD> good to know that those with whom you get involved are not just dreary little housewives and dull husbands , but People Who Do Things '' . 
Meaning of the word marked with <WSD> tags:  have the quality of being; (copula, used with an adjective or a predicate noun)