Christmas is a Christian holy day usaually celebrated on December 25th.这句话不应该用被动语态吗,即圣诞节被庆祝在每年的12月25日.如果是被动式,celebrated前面怎么没有be动词修饰?

Christmas is ____ the birth of Jesus Chris.答案是填celebrating还是to celebrate?为什么?求大神... christmas is a popular holiday in the western countries.people like it very much.B_____christmas,people are busy doing shopping.Many familes have christma t_______in their home.AT that time,you can hear chris m______hereand there.people usually have christmas is a popular holiday in the western countries.people like it very much.B_____christmas,people are busy doing shopping.Many familes have christma t_______in their home.AT that time,you can hear chris m______hereand there.people usually have Christmas is a specil holiday. During Christmas,the most important thing for western people is____ A.Chris...During Christmas,the most important thing for western people is____ A.Christma tree b.Christma gifts what is christmas?it is a western____ what is a wonderful festival christmas is 英语翻译Father Christmas is.a real peron. Christmas is a W___ holiday 怎么填 christmas is a western holiday.找错 christmas is a special holiday什么意思 chris chris 英语翻译Chris is calling'Teen Talk',a radio advice program,to get advice about a problem. Christmas is a western festival celebrated by C__ Christmas is a western festival celebrated by C__ Christmas is coming soon.It is a joyful holiday.译文 英语作文:A Happy Christmas Day,开头是：Christmas Day is coming This is a Christmas card.lt has a yellow