what is his favorite subject.用what does可以吗?为什么不可以.那换成what does he行吗?

what is his favorite subjest=what -- -- he -- -- Do you know what（ A his favorite song is B his favorite song what is his favorite subject/?为什么要用his啊?不用he或者him His favorite food is apples. -------------------------------------?His favorite subject is maths. His favorite ____ is ___ His favorite s_______ is math his favorite city is 后面可以填什么?his favorite song,favorite TVshow,favorite movie呢? his favorite subject is English.（对划线部分提问）答案是（what）（is）his favorite subject,可以说what does吗?如果不可以,是不是可以说what does he favorite subject呢? What is your favorite movie? what is your favorite color what is your favorite movies? your / what / is /color / favorite what is your favorite sport, your / what / is /color / favorite what is your favorite singer? What is( )(she)favorite sport? 同义句转换.1,What 's his favorite food.2,She is an English teacher.