choose the correct item.
1:whose camera is this?it's___
 A:her   B:hers
2:Mike is___son
A:peter's and Sue's's    B:peter and Sue's
3:this football isn't mine.lt's my ___
A:cousin's      B:cousins
4:is this___card?
A:Roses'    B:Rose's
5:these are pencils.
A:Emily's   B:Emelys

прошу помогите.заранее спасибо