英语翻译On Christmas Day.Jim's family were in his grandparents'

英语翻译On Christmas Day.Jim's family were in his grandparents' Jim's family were in his grandparents' house.改为否定句 on christmas day,helen's family were in her g-------house jim's family were in his grandpa's house just now对划线部分提问jim' at Christmas jim and his parents were in his grandpa’s house On Christmas Day,they were in their grandparent's house修改病句 On Christmas Day,Tom`s family_____(be)in his grandpa`s house on christmas day?还是 in Christmas day? on or in christmas day Our family are u（） together on Christmas Day “ In 1974,on December 25,Christmas day. christmas day 前面加on还是in