Do you sleep for eight hours ___ night?
Do you sleep for eight hours AT night?
Do you watch TV ____ lunchtime?
Do you watch TV AT lunchtime?
Do you prefer to do exercise ___ the morning or ___ the evening?
Do you prefer to do exercise IN the morning or IN the evening?
Do you make dinner ___ the evening?
Do you make dinner IN the evening?
Do you go ___ a restaurant for dinner ___ Friday nights?
Do you go TO a restaurant for dinner ON Friday nights?
Do you have lunch ___ work / school during the week?
Do you have lunch AT work / school during the week?
