—Do you have any idea why the engineer resigned?—No. In fact everyone is about it.A. doub

问题补充：

—Do you have any idea why the engineer resigned?

—No. In fact, everyone is about it.

A. doubtful

B. curious

C. enthusiastic

D. annoyed

答案：

A. doubtful

(答案→)B. curious

C. enthusiastic

D. annoyed

解析：考查形容词辨析。句意：--你知道那个工程师为什么辞职吗？--不知道。事实上，每个人都很好奇这件事。A未必的，怀疑的；B好奇的；C热情的；D恼怒的。故选B。