1. I wake up (early) on weekdays because I start work (at) 8 a.m., but I sleep (until) 10 or 11 p.m. ( on ) weekends.
2. I take a shower (after) I wake up (in) the morning.
3. I work at the hospital (from) 11 p.m. to 7 a.m. four days a week. I get home (at) 8 a.m. ( in ) the morning and go to bed (at) 10 a.m., (after) I eat breakfast. Then I sleep (until ) 5:00 ( in) the afternoon.
4. I usually go to bed (at ) 11p.m. (at) night (on) weekdays, but I stay up (until) 2 a.m. (in) the morning (on) weekends.