Life in Hogwarrts- Жизнь в Хогвартсе.
Many American inventors tried to find ways to ease the process of washing. By 1873, some 2,000 patents had been issued for washing machines. Most of these machines were clumsy devices.
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Did Mary visit London last month? Общий
Who visited London last month? Вопрос к подлежащему
When did Mary visit London? Специальный
Mary visited London last month,didn’t she? Разделительный
Did Mary visit London or Glasgow last month? Альтернативный