Use the verb to be in Present Indefinite.
1. He . . . a good student
2. They . . . old friends.
3. I . . . a teacher.
4. John . . . absent from class today.
5. The weather . . . good today.
6. The sky . . . clear.
7. We . . . both students.
8. Mr. Smith . . . sick today.
9. She and I . . . cousins.