----- Nội dung dịch tự động từ ảnh -----
Make the questions (Yes / No) for the following sentences:
49. The ethnic minorities in Vietnam often live in mountainous areas.
50. Their costumes are colorful and unique.
51. They often gather together at the communal house in special occasions.
52. Ethnic people often hold festivals in spring.
53. Life in the mountainous areas is quite difficult because of the extreme weather.