Решение:
Заменяем выделенные слова подходящими местоимениями.
- Annie is five today. — She is five today.
- My mum likes singing. — She likes singing.
- The school bag is yellow. — It is yellow.
- How old is Billy? — How old is he?
- My dad is a doctor. — He is a doctor.
Ответ: 1. She; 2. She; 3. It; 4. is he; 5. He.