doing怎么读,doing什么意思

2016年五年级英语上册 lesson 1 what is she doing课件1 科普版_1.
b:they are doing morning exercises 他们正在做早操.
what are you doing to me,you tell me,im so sorry,good night my
what is he doing? 我正在读书. i am reading book.
人教pep版小学五年级英语下册unit4 what are you doing课件ppt