Решение:
- I don't understand you. Do you understand me?
- Tell them your address. They don't know it.
- Ask her why she is laughing.
- Where are my books? They are on the chair.
- Did you like the film? It was horrible!
Ответ: 1. I, me; 2. your, They; 3. her, she; 4. They; 5. It.