49. The ethnic minorities in Vietnam often live in mountainous areas.

……where do the ethnic minorities ( dân tộc thiểu số ) in Viet Nam often live ………..?
50. Their costumes are colorful and unique.
……………………how are their costumes…..?
51. They often gather together at the communal house in special occasions.
……………………where do they often gather in special occasions.?
52. Ethnic people often hold festivals in spring.
………………………when do ethnic people often hold festival…?
53. Life in the mountainous areas is quite difficult because of the extreme weather.
…………………why is life in the moutainous area quite dificult…?