Are there sentences right?
1、China has the tradition of Mother's Day send carnation to mother.(中国有母亲节送康乃馨的传统。)
2、China has the tradition of the Dragon Boat Festival eat ZongZi.(中国有端午节吃粽子的传统。)
3、Update address list regulary and sent them to the group headquarter.(定期更新通讯录并发送到集体总部)
4、All of post must to sign in person.(所有邮件必须本人签字。)
5、I was majored XX in the university. (我在大学期间主修XX专业。)