$\text{56.}$ D 

→ Dẫn chứng : The Lo Lo ethnic group can be divited into Flower Lo Lo and Black Lo Lo . 

$\text{57.}$ B 

→ Dẫn chứng : Living in the Lung Cu since ancient time , the Lo Lo people have made many efforts in making homeland suitable for farming . 

$\text{58.}$ D 

→ Dẫn chứng : The Lo Lo Folklore culture is very rich and unique , ... 

$\text{59.}$ A 

→ Dẫn chứng : The Lo Lo calendar a year into 11 months , .... 

$\text{60.}$ C 

→ Dẫn chứng : The head of each family entitled to keep the drums which are used only during funerals or festivals .... 

$#Lynkk$