My birthday is on December 12th

My birthday is on December 12th My birthday is on 20th December.(同义句） I ________ _________on 改错 My birthday is in Octorber 15th He is December 12th today My mother'birthday is __ December 15th A.at B.in C.on 横线上填什么 her birthday is on december My birthday is March December. My (birthday) is (at) (December) 11 th.(找出下面带括号句子中的错误,并改正.) 1.Her birthday is on December. My birthday is on the twenty-first of December同上（划线部分：on the My birthday is .It is on July 19th 填空 My birthday is March 12th. My birthday is on November 5th (改为否定句)