I have a football与I like hamburgers为什么football前要加a,hamburger

I have a football与I like hamburgers为什么football前要加a,hamburger I like _____.A.hamburger B.hamburgers C.Hamburger Piggy wanted to have hamburgers."can I ( ) a hamburger,Mum?" I（ ）a boy,I like football. I like play football .But I have no time_____play it.A.to B. I like playing football ,but I don't have a friend to play I like it,too.But I 1 have a football 1填什么? I like football very much .I want ( ) a football player A:be I ( ) a football fan.I like it very much. I like playing football and I ( ) playing basketball.A.also i have got a football 改为否定句i have got aknife改为一般疑问句i like re I like football very much I want ____ a football player