Choose the correct option

Do cows eat meat or grass? ... Is Jane a doctor or a student? ... Does your father like jazz or folk music? ... Is it 3 or 4 o'clok now? ... Does Michael or his sister like flowers very much? ... Are there any oranges or apples in the fridge? ... Is she from Moscow or Saint Petersburg? ... Who reads a newspaper in the morning: your father or your mother? ... Do you like ice cream or sweets? ... Are they waiting in front of or behind the school? ... Who phoned Sarah: you or Jane? ... Did Columbus discover America or India? ...