Children are excited about the approach of Christmas, may bring great happiness to them.
A. it
B. which
C. what
D. that
网友回答
A. it
(答案→)B. which
C. what
D. that
解析：考查定语从句。本题定语从句的先行词是Christmas，which指代先行词引导非限制性定语从句，在句中做主语。句意：对于即将到来的圣诞节孩子们很兴奋，圣诞节可以给他们带来很多的快乐。故B正确。AC两项不能引导定语从句，that不能引导非限制性定语从句。