【系統公告】頁面上方功能列及下方資訊全面更換新版，舊用戶可再切回舊版。 前往查看

高考◆英语◆山东省題庫下載題庫

上一題
28. The school rules state that no child shall be allowed out of the school during the day, ______ accompanied by an adult.
(A)once
(B)when
(C)if
(D)unless

答案：D
難度： 計算中


28. The school rules state that no child..-阿摩線上測驗