用cost,take,spend,pay填空

用cost,take,spend,pay填空
1,She ___ three hours going over the whole lesson.
2,He ___ ten yuan for the book.
3,How many hours does it ___to fly to London from here?
4,I'm ___ a lot more time on math than before.
5,It didn't ___ the children too long to fall asleep here
6,That suit ___ over 60 dollars.