1) Does Oleg's friend go fishing at weekends ( общий) 2) Oleg's friend goes fishing at weekends, doesn't he? ( разделит.) 3) Does Oleg's friend go fishing at weekends or at weekdays? (альтернативный) 4) When does Oleg's friend go fishing? ( специальный) 5) Who goes fishing at weekends? ( к подлежащему)