On Christmas Eve, children are eager to know Father Christmas es and puts presents into their stockings．
A. that
B. what
C. where
D. how
网友回答
A. that
B. what
C. where
(答案→)D. how
解析：句意：在圣诞前夜，孩子们渴望知道圣诞老人是怎么来怎么将礼物放进袜子里面的。这里know后面接的是宾语从句，宾语从句中不缺主宾表，缺少的是方式状语，所以选D。