2.Replace the nouns in bold with the right personal pronoun. 1. Mr. Smith is a teacher. - He is a teacher. 2. Tom and I are doctors. 3. Ian and Andrew are English. 4. The cat is three years old. 5. Michael is American. 6. Caroline and I are students. 7. Mrs. Brown is twenty-five. 8. Robert and Tom are friends. 9. Jenny is a nurse. 10. Bill is a boy.