Образуйте притяжательный падеж. 1) the room of my sister; 2) the opinion of her friends; 3) the order of the commander-in-chief; 4) the advice of passer-by; 5) the poems of lermontov; 6) the walls of the room; 7) the bag of the boy peter; 8) the daughter of my younger sister; 9) the flag of the country; 10) the waves of the sea; 11) the pens of the girls; 12) the rights of the women; 13) the wisher of the people; 14) the birthday of my mother-in-law; 15) the members of the party; 16) the sisters of her relatives; 17) the letter of this postman; 18) the pencils of these pupils; 19) the pages of those books; 20) the floor of this house; 21) the opinion of my mother-in-law; 22) the decision of her principle; 23) the advice of this old man; 24) the doughter of my younger sister; 25) the library of the institute; 26) the story of this writer; 27) the latters of my friends; 28) the house of my parents; 29)the meeting of these students
1) my sister's room
2) her friends' opinion
3) the commander-in-chief's order
4) passer's-by advice
5) Lermontov's poems;
6) the room's walls
7) the boy Peter's bag;
8) my younger sister's daughter
9) the country's flag
10) the sea's waves
11) the girls' pens
12)the women's rights
13) the people's wisher
14) my mother's-in-law birthday
15) the party's members
16) her relatives' sisters
17) this postman's letter
these pupils' pencils
19)those books' pages
20) this house's floor
21) my mother's opinion-in-law;
this old man's advice
my younger sister's daughter
25) the institute's library
26) this writer's story
27) my friends' letters
28) my parents' house
29) these students' meeting