4a Complete the male/female equivalent: 1 stepfather …..; 2 brother-in-law …..; 3 nephew …..; 4 half-sister …..; 5 mother-in-law …..; 6 grandson …..; 7 great-grandfather …..; 8 ex-husband …..; 9 widow …..; 10 twin sister …..

1. stepfather — stepmother
2. brother-in-law — sister-in-law
3. nephew — niece
4. half-sister — half-brother
5. mother-in-law — father-in-law
6. grandson — granddaughter
7. great-grandfather — great-grandmother
8. ex-husband — ex-wife
9. widow — widower
10. twin sister — twin brother

Answer: 1 stepmother; 2 sister-in-law; 3 niece; 4 half-brother; 5 father-in-law; 6 granddaughter; 7 great-grandmother; 8 ex-wife; 9 widower; 10 twin brother.