When I came into the room,I saw him _______ his homework.A、did B、_英语解答

When I came into the room,I saw him _______ his homework.A、did B、does C 、doing D、to do

人气：131 ℃　时间：2019-10-11 00:23:41

解答

答案：C
see sb.doing sth 表示“看见某人正在做某”,用动词的ing形式表示动作正在进行.
句意：当我走进房间的时候,我看见他正在做家庭作业.