POLECENIE: Odpowiedz na pytania.

- Hi, John. Are you OK?
- No, I'm not. I'm very tired today. My homework is very difficult.

How is John?   .

- Excuse me, dad. Are you very busy?
- No, I'm not. What's the problem?
- My homework is very difficult. Can you help me?
- Yes, of course.

Is Dad busy?   .

What's the problem?   .