ответьте на вопрос по образцу.образец: is jim dancing? (x)-no,he isn't. are they reading? (+)-yes,they are. 1.is ann playing the piano? (+). 2.are those people talking? (x) 3.are the students reading? (+) 4.is his son making a sandcastle? (x) 5.is this man painting a picture? (+)