bjr vous pouvez m'aider svp

c est la nulero combien ?

excercise1
1. he is singing
2.he sings very well.
3.does he is singing with a band ? 
4.he is singing all around the world.
5.what is he singing these days ?

exercise 2
1. what are you doing?
2.i'm reparing my cycle.can you help me?
3.no, i'm working.
4.you are working too much.
5.good, i come.