Поставьте следующие предложения в вопросительную и отрицательную формы:
1)Some people are reading.
2)Joey has been to Moscow.
3)We have just met an American boy
4)I have been waiting this holiday for so long

1) Are some people reading? Some people aren't reading.2) Has Joey been to Moscow? Joe hasn't been to Moscow.3) Have we just met an American boy? We haven't just met an American boy.4) Have I been waiting this holiday for so long? I haven't been waiting this holiday for so long.