Question

Do you know ________ now in the yard?

A. where Jim is reading    B. when Jim is reading    C. how Jim is doing    D. what Jim is doing

Answer

D

【解析】句意：你知道吉姆现在院子里做什么吗？A. where Jim is reading 吉姆正在哪里读书； B. when Jim is reading 吉姆什么时候读书； C. how Jim is doing 吉姆如何做； D. what Jim is doing吉姆正在做什么；此处是动词know后面的宾语从句，用陈述语序：疑问词+主语+谓语，此处有时间状语now，故排除B选项，有地点状语in the yard故排除A选项。C项的how Jim is doing缺少宾语，不能作宾语从句，故排除。故选D。