1. my brother’s … son is … student. 2. his friend’s …mother is … engineer. 3. our teacher’s … daughter is … teacher too. 4. her uncle’s … son is … pilot. 5. our secretary’s … office is … light.

1. My brother’s son is a student.
2. His friend’s mother is an engineer.
3. Our teacher’s daughter is a teacher too.
4. Her uncle’s son is a pilot.
5. Our secretary’s office is light.