With the country’s population reaching 1.6 billion in the mid of this century most of Chi

问题补充：

With the country’s population reaching 1.6 billion in the mid of this century, most of China’s rivers, including the Yellow River, .

A. is drying up

B. will be drying up

C. dry up

D. have dried up

答案：

A. is drying up

(答案→)B. will be drying up

C. dry up

D. have dried up

解析：考察时态及语态。句意：随着本世纪中期国家的人口达到十六亿，中国大部分河流，包括长江都会干涸。Dry up弄干，河流是被弄干的对象，故用被动语态。结合句意可知描述的将来的动作，故用将来时，选B。