3. составьте утвердительные и отрицательные предложения. используйте am/i am not/is/isn't/are/aren't. (st petersburg/the second largest city of russia) st petersburg is the second largest city of russia. (i/an athlete) - i am an athlete. ) (i/late) i . 2) (i/hungry) i . 3) (we/busy) we . 4) (my hands/cold) . 5) (.everest/the highest mountain) . 6) (the water/ . 7) (alpine skiing/a dangerous sport) . 8) (dogs/friendly animals)…