Помогите решить небольшое задание по англ.(Choose the right word:elder-older-oldest)
1)MrBrown is...than his wife.2)Her...brother is in the USA.3)Who is the...in your group?4)MrBlack is 38,he is three years...than me.5)Mr and Mrs Smith have two daughters,their...daughter is four years...than mine.6)She is their...granddaughter.7)Which is the...of the two nephews?

1.older

2.elder

3.oldest

4.older

5.elder, older

6.elder

7. eldest