Completa los huecos con la forma afirmativa, negativa o interrogativa del verbo TO BE.
1. I __________ a Spanish boy.
2. __________ you a dentist? No, I __________ .
3. __________ Mary your friend? Yes, She __________ .
4. My mother __________ a doctor. She __________ a teacher.
5. Peter and Jenny __________ tall.
6. __________ his pets dogs? No, they __________.
7. I think your little sisters __________ very shy.
8. My uncle Fred __________ very talkative.
9. __________ this cat yours? No, It __________.
10. We __________ at home on Sundays.