Christmas Day is a Christian great day held on December 25th in honour of the birth of Christ,_______ many events will be held1.when2.which3.where4.that
问题描述：
Christmas Day is a Christian great day held on December 25th in honour of the birth of Christ,_______ many events will be held
1.when
2.which
3.where
4.that
答
选B.
答
1 when
定语从句
代在圣诞节这天
答
when
可以看到后面的这句不缺成分所以只能选when,where,前面的句子没有提到地点，所以选when.
这句意思是 圣诞节是12月25号，是基督教的盛大节日，是为了纪念耶稣的诞辰，这一天会举行许多活动。
答
when
答
1.when