Choose the correct answer.选择正确的答案填空.
1.——How often do 『 』（of,for）piay football?
——once a week.
2.____what can i do{ }(of ,for)you?
----l'd like an apple pie.
3.——what do you want 『 』（to,for）eat?
——l want some chicken.
4.----she comes『 』（of,from）shanghai.
----she want to eat some fish.
5.----would you like 『 』（on,to）fiy a klte with me?
----that's a good idea!