Write in the correct Verb to be1?

Write in the correct Verb to be 1. Cindy ______ my best friend. 2. Peter and Kate ______ classmates. 3. Johnny _______ my brother. 4. You _______ a good student. 5. They ______ in the classroom. 6. It ______ an apple. 7. Felicia and I ______ sisters. 8. I _____ her teacher. 9. It _______ a book bag. 10. You _______ a doctor.