1.She often spends 2 hours on TV.
It often _takes___her 2 hours___to watch__ ____TV.
she often _spends___2 hours ___on___TV
2.Changsha is the biggest city in Hunan.
Changsha is __bigger__than___any other cities__ _____ ____ in Hunan.
Changsha is __bigger__than__all cities___ _____in Jiangxi.