部编本八年级下册英语怎么说

❶ 部编版四年级下册英语怎样学好牛津英语答案

结构2：名词或代词(主格) + doing
1)My mother cooking in the kitchen, I was doing my homework in my room. （表伴随）我妈妈正在厨房做饭，我版在房间里做作业权。