Yuan Longping，one of the （great） scientists in the world，is known as "Father of hybrid rice".
China （have） three main types of teas：green tea，black tea and wulong （a tea，halfway between black and green tea）.
Chairman Mao once （say） that women could hold up half the sky.
Mid﹣Autumn Festival is a special time for families and it is on the 15th day of the eighth lunar month.
The official language of China is Putonghua， the foreigners usually call it Mandarin.
He who has not climbed Great Wall is not a true man.