Huangguoshu Waterfall is _______ (wide) known to people from home and abroad.
People eat eggs on their birthday in some _______ (place) of China.
Reading makes _______ (we) wiser and more learned.
Don’t make the wetlands smaller. There is ________ (越来越少的空间) for wildlife.
________ (为了保护) students’ eyesight, Chinese government has taken action in recent years.