Ответ:
1)How are you? - I'm fine, thanks.(e)
2)How old are you? - I am eleven. (a)
3)When are you free? - On Sunday. (g)
4)Why are you at home? - I am ill. (d)
5)How is your sister? - She is fine. (f)
6)How is your brother? - He is fine. (h)
7)How old is your sister? - She is eleven. (i)
8)Where is your sister? - She is at home.(c)
9)Where are you? - I am in the shop. (j)
10)Why are you at the shop? - I need some cheese. (b)