Составьте вопросы и ответы по подсказкам , которые даны, используя пример : пример : peter / cook pizza / half an hour/ - how long has peter been cooking pizza? - he has been cooking pizza for half an hour. 1) jenny / walk the dog/ two hours 2) ron / warm up food in the microwave oven / three minutes 3) the children / plant trees / all day 4) father / fix the iron / all morning 5) nelly / make the salad / ten minutes 6) the girls / baby - sit / since afternoon ( ! всем )