1. Emily and her grandfather eat dinner together once a week, and they sometimes go
out to a restaurant. And. And adds information.
2. This week they could go to their favorite Japanese restaurant, or they could try a new
Mexican place. Or or gives a choice.
3. Emily could not decide, but her grandfather chose a Japanese dinner.
But But shows contrast.
4. Grandfather wanted to take the bus Emily preferred to walk to the restaurant.