People the southwest of China were in great need of water a couple of months ago.A. inB. a

问题补充：

People the southwest of China were in great need of water a couple of months ago.

A. in

B. at

C. to

D. on

答案：

(答案→)A. in

B. at

C. to

D. on

解析：本题表示的是在中国西南部地区的人们需要大量的水，表示在内部，通常用介词in，故本题选A。