“The staff were dead beat” in the first paragraph means that they were______.

题目：“The staff were dead beat” in the first paragraph means that they were______.

A. wounded
B. exhausted
C. irritable
D. forgetful

喵查答案：B

[解析] 由第一段大意可知，圣诞前夜有许多购物者，说明该店员工到最后时刻也非常累，筋疲力尽，渴望回家，故选B。