Make sentences:
1 When doing morning exercises, the students lined up for doing morning exercises.
2. During the activity class, the classroom became a big activity room; When I was in astronomy and geography class, the classroom became a vast universe; Physical education class, the classroom becomes exercise directly.
On the first day of school, the teacher asked the junior students to watch the performance of the senior students. I saw senior students line up quickly, horizontally and vertically, which was great. The radio exercise music is playing, and they are doing it paragraph by paragraph, stretching their arms and raising their hands; Lunges and punches together, just like a person doing exercises. It's hard to jump, but still do it together. It's beautiful. They are energetic in stepping and swinging their arms, and their movements are agile and neat. They don't shake their heads or look around.
Gymnastics is really lively. Some students are playing table tennis, some students are playing badminton, and some students are taking part in running competitions. Table tennis players play one game after another, and they have to fight to the death to win or lose.