$\text{VIII.}$

$\text{⇒ Answer:}$

$\text{1. ethnically.}$

$\text{2. peace.}$

$\text{3. beliefs.}$

$\text{4. cultivated.}$

$\text{5. traditional.}$

$\text{IX.}$

$\text{⇒ Answer:}$

$\text{1. There are 54 ethnic groups in Vietnam.}$

$\text{2. The Kinh people mostly live in the Red River delta, the central}$

$\text{coastal delta, the Mekong delta and major cities.}$

$\text{3. The population of the Tay is about 1 million.}$

$\text{4. Brau, Roman and Odu have the smallest population.}$

$\text{5. Most ethnic peoples live on wet rice cultivation.}$

$\text{II.}$

$\text{⇒ Answer:}$

$\text{1. What a beautiful village?}$

$\text{2. When did you build this stilt house?}$

$\text{3. It's more convenient to live in a big city than to live in a village.}$

$\text{4. What's his address?}$

$\text{5. In spite of being quite poor, the villagers live a happy}$

$\text{and heathy way.}$

$\text{Answer : }$

`1.` $\text{ethnicall}$

`2.` $\text{peace.}$

`3.` $\text{beliefs}$

`4.` $\text{cultivalted}$

`5.` $\text{traditional}$

$\text{Good luck !}$