值日安排的对话表达 — 英语选择题
题目
值日表原定为：周一 Anna，周二 Bill，周三 Coco，周四 David，周五 Ella。每人的值日顺延两个上学日（周三的顺延至周五）。同学问：“Who is on duty on Friday?” 哪个回答正确？A. Coco is on duty on Friday. B. Anna is on duty on Friday. C. David is on duty on Friday. D. Ella is on duty on Friday.