英语 四年级 选择题 较难

What are you doing? 问答 — 英语选择题

外研版·英语(三起) Module 2 She's reading a book. AI 三重审校通过

题目
乐乐和姐姐在家。姐姐正在看电视,乐乐手里拿着一本书,正在读书。姐姐问:“What are you doing?” 乐乐应该怎样回答?A. I'm reading a book. B. She's reading a book. C. I'm read a book. D. I'm watching TV.