Her spirits ______ at the thought of all the work she had to do that morning.
 
【正确答案】 A
【答案解析】 动词词义辨析。sag“向下凹或中间下陷,松弛或不整齐地悬着”;sack“解雇某人,洗劫,就寝”;saddle sb. with sth. “让某人承担使人厌恶的责任或任务等”;score“记分,得分,刻痕”。根据句意,精神状态不好。故答案为A。