Here are some possible answers to fill in the blanks:

1. I love this cafe because the staff is **friendly**.
2. I eat in this restaurant every day because it's **cheap**.
3. My friend drinks lots of coffee here because it's **delicious**.
4. I usually stay in this café for a long time because the chairs are **comfortable**.
5. I only go here when I have lots of money because it's **expensive**.
6. Sometimes you can't get a table because it's very **busy**.
7. I don't like the sandwiches because they are **disgusting**.