李明正在写家庭作业是：Ling Ming is homeworking还是Ling Ming is homework?

题目

李明正在写家庭作业是：Ling Ming is homeworking还是Ling Ming is homework?

答案

LiMing is doing his homework
homework是名词 现在进行时 是 be 动词+动词的ing
有不会的可以再问,祝学习进步!