按括号内的要求转换下列句式，每空一词
Midori was born in 1971. (对划线部分提问)
__________ __________ Midori born?
He hiccupped for six years. (对划线部分提问)
__________ __________ did he hiccup?
He began to play for his national team when he was 15. (变为同义句)
He began to play for his national team at the _________ _________ 15.
He was so young that he couldn’t go to school.
He was______ young ______ go to school.
I spend two hours on my homework every day.
It__________  _______ 2 hours to do my homework every day.