With the development of production and science,radio a wide use in a short time.
A. found
B. finds
C. have found
D. has found
网友回答
A. found
B. finds
C. have found
(答案→)D. has found
解析：该题考查动词的时态和主谓一致。本句陈述的是在极短的时间内，收音机得到广泛的应用，且此情况有延续下去的可能性，因此应该用现在完成时态。