举报
masjtx
He is reading a newspaper in the office.
他正在办公室看报
Many children are swimming in the river
许多小孩正在河里游泳
She is doing his homework in the classroom.
她正在教室做作业
They are hearing an English talk.
他们在听一个英语报告
The students are making progress constantly.
学生们在不断进步。