The students were all when they heard the news.A. excited; exciting B. exciting; excited

问题补充：

The students were all when they heard the news.

A. excited; exciting B. exciting; excited C. exciting, exciting

答案：

解析：句意:当同学们听见这个令人高兴的消息的时候，他们都很兴奋。Excited用来形容人是高兴的；exciting是令人兴奋。根据句意故选A。