Half the world’s population water shortages within 15 years according to the World Bank, just one of many recent alarming reports on the world’s fresh water supply.
A. are suffering
B. have been suffered
C. will suffer
D. were suffered
网友回答
A. are suffering
B. have been suffered
(答案→)C. will suffer
D. were suffered
解析：根据时间状语within 15 years，故用一般将来时。