Образуйте отрицательную и вопросительную форму предложений.1.She is watching television at the moment. 2.They are playing football now. 3.My sister is writing a letter. 4.We are listening to the stereo. 5.They are talking to my friend. 6.Mary is sleeping. 7.You are listening to the radio. 8.He is having breakfast at the moment. 9.They are working now. 10.I am studying. 11.You are eating. 12.We are drinking coffee. 13.Michael is holding a book in his hand. 14.His friends are playing volley-ball. 15.I am planting trees.