1. Helen likes to read.
Общий: Does Helen like to read?
Спец. - What does Helen like to read?
Разделит. - Helen likes to read, doesn't she?
Альт. - Does Helen like to read or to cook?
2. The traveller came at 5 a.m.
Общий - Did the traveller come at 5 a.m.?
Спец. - When did the traveller come?
Разделит. - The traveller came at 5 a.m., didn't he?
Альт. - Did the traveller come at 5 a.m. or at 5 p.m.?