按要求改写句子。
(1)I am fine .(对画线部分提问)
______ are you ?
(2)The girl is singing.(对划线部分提问)
________ is the girl doing?
(3)I am sending you some photos.(对画线部分提问)
_____________________________
(4)The bird are flying away.(改错)
________________________________________
(5)This is a bird.(变成复数形式)
_______________________________________