Question

【题目】The headmaster came into the classroom and asked the boy what was happening. The underlined part means ________ .

A.What is going onB.What was going onC.What will happenD.What has happened

Answer 1

【答案】B

【解析】

句意：校长走进教室，问那个男孩发生了什么事。下划线部分意思是发生了什么？

考查动词短语和宾语从句的时态。happen=go on“发生”，根据划线部分用的是过去进行时，所以替换部分也要用过去进行时，故选B。