问题补充:
Chanjiang River is one of in the world.
A. the longest river
B. the longer river
C. the longest rivers
D. the longer rivers
答案:
A. the longest river
B. the longer river
(答案→)C. the longest rivers
D. the longer rivers
解析:句意:长江是世界上最长的河流之一。形容词的最高级为定冠词the加形容词的最高级加名词构成,而前面有个one of,所以后面的名词要用复数形式;故选C。