問題詳情

30. An artist who was recently traveling on a ferry to the southern island discovered ______ a long lost antique Greek vase.
(A). at random
(B). by chance
(C). in turn
(D). on occasion

參考答案

答案：B
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)