Do they speak English very well?-общий вопрос
Do they speak English or French very well?-альтернативный
Who speaks English very well?-к подлежащему
How do they speak English?-специальный
They speak English very well,don't they?-разделительный
Does she spend holidays in Italy?-общий вопрос
Does she spend holidays in Italy or in Spain?-альтернативный
Who spends holidays in Italy? -к подлежащему
Where does she spend her holidays?-специальный
She spends holidays in Italy,doesn't she?-разделительный