$\text{1.}$ mainly in Northern Vietnam provinces . 

→ Dẫn chứng : They live mainly in Northern Vietnam provinces such as Cao Bang , Lang Son , Bac Can , Thai Nguyen , etc . 

$\text{2.}$ Five - coloured sticky rice and sticky rice with black ants' egg . 

→ Dẫn chứng : Their specialities include five-coloured sticky rice and sticky rice with black ants' egg .

$\text{3.}$ Stilt and earthen one . 

→ Dẫn chứng : The Tay live in stilt house and earthen houses with different rooms for men and women 

$\text{4.}$ Yes , they do . 

→ Dẫn chứng : The Tay weave cloth for their own use and dye all cloth dark indigo for both men and women . 

$\text{5.}$ The King's clothes . 

→ Dẫn chứng : Tay men prefer to wear the King's clothes daily but their own costume at significant festivals . 

$\text{6.}$ Three generations of their ancestors and the gods of nature . 

→ Dẫn chứng : The Tay workship three generations of their ancestors and the gods of nature . 

$\text{7.}$ which is held after Lunar New Year to pray for good crops . 

→ Dẫn chứng : .....which is held after Lunar New Year to pray for good crops .  

$#Câu 7 chưa chắc chắn lắm$

$#Lynkk^^$