city in Zhejiang Province located on the river’s upper reaches is believed to be sourc

问题补充：

city in Zhejiang Province, located on the river’s upper reaches, is believed to be source of the dead pigs.

A. The; a

B. The; the

C. A; the

D. A; a

答案：

A. The; a

B. The; the

(答案→)C. A; the

D. A; a

解析：考察冠词。本题第一空用a泛指一个浙江的城市；第二空名词source后面有介词短语of the dead pigs修饰，故使用the表示特指。句意：位于长江上游的一座浙江省城市被认为是死猪的源头。故C正确。