Question

The Diaoyu islands have been part of China's territory since ancient times, ________ as important fishing grounds of Taiwan.

A．served B．to serve

C．serving D．having served

 

Answer 1

C

【解析】C 考察非谓语动词。句义：钓鱼岛作为台湾的重要渔场，自古以来就是中国的领土。分析句子结构可知，空格处做伴随状语，且和主语是逻辑上的主动关系，故用现在分词做状语，表示主动关系。故C正确。