The whole nation watched the two candidatesthe issue of raising taxes on TV.A. argue　B. qu

问题补充：

The whole nation watched the two candidatesthe issue of raising taxes on TV.

A. argue

B. quarrel

C. discuss

D. debate

答案：

A. argue

B. quarrel

C. discuss

(答案→)D. debate

解析：考察动词词义辨析。A争论B争吵C讨论D辩论；句意：全国人民都都观看两个候选人在电视上进行的关于提高税收问题的辩论。根据句意说明D项正确。