(·湖北 30)An artist who was recently traveling on a ferry to the southern island discove

问题补充：

(·湖北，30)An artist who was recently traveling on a ferry to the southern island discovereda long lost antique Greek vase.

A. at random

B. by chance

C. in turn

D. on occasion

答案：

A. at random

(答案→)B. by chance

C. in turn

D. on occasion

解析：考查短语辨析。此处表示“偶然发现了一个遗失多年的古希腊花瓶”，故选B。