问题详情：
![Kendidn’tvisitShanghaiARTGallerywithJillyesterdayafter...]( "Kendidn’tvisitShanghaiARTGallerywithJillyesterdayafter...")
Ken didn’t visit Shanghai ART Gallery with Jill yesterday afternoon because he ________ a report at that time.
A had written B wrote C would write D was writing
【回答】
D. 此题考察过去进行时的用法。题干中描绘的事件均发生在过去，且句末的 “at that time”表明了Ken在过去的那个时间正在写报告，故选D。
知识点：动词时态
题型：选择题
