Краткий ответ на вопрс: who can dance? Who could dance? who is tired? who was tired? Who has got an idea?

1. Who can dance? I can.

2. Who could dance? he could.

3. Who is tired? I am.

4. Who was tired? He was.

5. Who has got an idea? I have got.

6. Who could swim? They could.

7. Who can sing? We can.

8. Who is busy? I am.

9. Who are popular? We are.

10. Who is free today? He is.