Question

【题目】—Who’s _______ today? ( )

—It’s me. I’ll clean the blackboard right now.

A.on the dutyB.on dutyC.on the desk

Answer 1

【答案】B

【解析】

句意：谁今天值日。是我，我马上就去檫黑板。On duty值日，固定搭配，故选B。