問題詳情

27. Winning a lottery is a rare occurrence.______ very small.
(A) A number of winners is
(B) The number of winners is
(C) A number of winners are
(D) The number of winners are

參考答案

答案：B
難度：適中0.583333
統計：A(2),B(7),C(1),D(1),E(0)