         Sentence 1: Then, too, there ‘have been  the carnpaigners who have gone. to  what some regard as opposite. if the  head of a committee. is known to-be a  man er a.wornan; then chairman’ or  chairwoman must surely be the proper,  denotation; if ‘the sex of the person is  not known, then chairperson. , though  awkward-sounding,. is the preferred  form:    Sentence 2: Language must be adapted  to a person's.gender to avoid causing  offense.    