Question

I was surprised to know that ________ two top students were

Answer 1

C

本题考查冠词。第一个没有特指哪两个学生，故不加冠词，第二个a third one表示“又一个，再一个”。句意：我很吃惊的知道，两个优等生在超市偷东西被抓。更糟糕的是，还有一个被发现与别人打架。