Each of the 400 people received from their boss gift——“Who moved my cheese?”—— best-seller

问题补充：

Each of the 400 people received from their boss gift——“Who moved my cheese?”—— best-seller in the US——to understand how to deal with changes in their lives and work.

A. the; 不填

B. a；a

C. a；不填

D. the；a

答案：

A. the; 不填

(答案→)B. a；a

C. a；不填

D. the；a

解析：考查冠词的用法。前者表示数量“一个”，后者表示种类“一种（非常畅销的书）”。