問題詳情

28.
(C)hildren under 12 years of age in that country ________ be under adult supervision when is a public library.
(A). must
(B). may
(C). can
(D). need

參考答案

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