1、He is reading a book about history.
2、I am typing a response to your question.
3、They are discussing the project in the meeting.
4、She is studying for her upcoming exam.
5、The workers are painting the walls of the building.
6、The chef is preparing a delicious meal in the kitchen.
7、We are watching an interesting documentary about space exploration.
8、The children are playing in the park.
9、The team is developing a new software application.
10、The singer is performing at the concert.
11、The students are participating in a science experiment.
12、The teacher is explaining a complex mathematical concept to the class.
13、I am writing a detailed report on the current market trends.
