【题目】_____ she is the only daughter of the boss, she started from the lowest position as a common employee.
A.Unless
B.While
C.Since
D.As

【答案】B
【解析】这题考查连词的用法，句意是：虽然她是老板的唯一的女儿，但她是从一个普通的职员做起的。几个选项只有while有“尽管”的意思。选B。