1． “Tommy, run! Be quick! The house is on fire！” the mother shouted, with ________ clearly in her voice.
A. anger B. rudeness
C. regret D. panic
[解析]本题考查名词辨析。句意：“汤米，快跑！快点儿！房子着火了！”妈妈大喊，嗓音中明显带着恐慌。A项意为“怒气”；B项意为“粗鲁”；C项意为“遗憾”；D项意为“恐慌”。根据当时所处环境可知妈妈应该是惊慌失措。
[答案]D
2．There's a ________ in our office that when it's somebody's birthday, they bring in a cake for us all to share.
A. tradition B. balance
C. concern D. relationship
[解析]本题考查名词辨析。句意：我们办公室有一个惯例，当有人过生日时，他们要带来一个蛋糕供我们大家分享。tradition 惯例，传统；balance 平衡；concern 关心；relationship 关系。根据句意，A项正确。
[答案]A
