句型转换：根据题后括号内的要求改写句子，每空一词。（共15分）
—Which is _________ (big), the sun or the moon?
—The sun, of course.
This bag is heavy and that bag is much _________ (heavy)than this one.
—Would you like_________ (play)football with us?
—I’d love to, but I have lots of homework to do.
The film star has _________ (million)of fans in the world.
I play the piano every day because I want to play as _________ (good)as Langlang.