Вставить вместо точек am,is,are,sitting,having aing. Mary... going for a walk with her dog now. Bill is ... near the fireplace The children ... playing volleyball We are .... a nice day.It's warm and sunny. I ... riding a bike with my friends.

Is going for a walk

Mary is going for a walk with her dog now. Bill is sitting near the fireplace. The children are playing volleyball. We are having a nice day. I am riding a bike with my friends.