Английский язык: Ребят,пожалуйста, Очень сроооочно

Helen is learning an English poem now.
The children are looking at the blackboard now.
Mary is opening the window now.
My parents are working now.
I am singing a song now.
The boys are playing table-tennis now.
The pupil is writing a composition now.
I am speaking English now.
My parents are cooking dinner now.
Mary and Ann are helping their mother at home now.