`1`. The Vietnam's New Year occurs between January twenty-first and February nineteenth.
Thông tin từ bài đọc: It occurs between January twenty-first and February nineteenth.
`2`. People tidy their houses, cook special food and make offerings.
Thông tin từ bài đọc: They tidy their houses, cook special food and make offerings.
`3`. People sit up to midnight to see the New Year in.
Thông tin từ bài đọc: On the New Year's Eve, people sit up to midnight to see the New Year in, then they put on new clothes and give one another this greetings of the season.
`4`. Yes, they are.
Thông tin từ bài đọc: The first three days are the most important. Vietnamese people believe that how people act during those days will influence the whole year.