1·Yesterday was the first day of our winter holiday.
昨天是我们寒假的第一天。
2·I wouldn't have got a full mark in the last listening exam if I hadn't practiced it during the winter holiday.
如果我没有在寒假期间练习，我就不能在上次的听力考试中得满分。
3·I believe you will know a lot about Chinese traditions this winter holiday, such as the custom, practices, cuisine, greeting and so on.
我相信你会在这个寒假了解到中国的传统习俗，如风俗、菜肴、祝词等等。
4·This winter holiday, I went to Kunming with my family.
这个寒假，我和我的家人去了昆明。
5·Yes, I believe you will know a lot about Chinese traditions this winter holiday, such as the custom, practices, cuisine, greeting and so on.
对的，我相信你一定可以在这个寒假了解到许多中国的传统习俗，如风俗习惯、菜肴、祝词等等。