Задание 2:2.-Are Robert and Peter on the computer? -Yes, they are3.-Is the dog bitting the armchair?-Yes, he is.4.-Is Sandy playing the piano?-No, he isn't 5. Are Jake and Tom jumping on the sofa?-Yes, they are.Задание 3: P.S. там все размазано, я напишу то, что увидела.Have - having; go - going, work - working; meet - meeting; practise - practising;eat - eating; do - doing; look- looking; paint - painting; serve - serving; read - reading; repair- repairing; wait - waiting, come - coming.Задание 5:My little brother is brushing his teeth. My little sister is playing with a telephone. My mum is watching TV. My father is reading the newspaper.