4-at the Mid-Autumn festival, kids can sing, and enjoy moon-cakes; Therefore, many children like it very much.

VII

1-If it cost too much money, we don't celebrate the festival.

2-Most people book tickets long in advance; otherwise, they can not return home for tet.

3-Children likes Tet because it's a long holiday; moreover, they can also receive lucky money.

4-Although the buffalo-fighting festival sounds frightening, many peolpe come to enjoy it.

5-The Hung King temple was a local festival ; Nevertheless, It has become a pulic holiday in Vietnam since 2007.

1. If it did not cost too much money, we would celebrate the festival

câu điều kiện loại 2  [If + thì quá khứ đơn],  [would + động từ nguyên mẫu]
2. Most people book tickets long in advance; otherwise, they can not return home for Tet
3.Children like Tet because it’s a long holiday,morever, they can also receive lucky money
4. Although the buffalo-fighting Festival sounds frightening, many people come to enjoy it
5.  The Hung King Temple Festival was a local festival; nevertheless, it has become a public holiday in Vietnam since 2007.