​As respostas aqui são apenas sugestões para o aluno se basear, todas são interrogativas:

1) Have ever you crashed your car?

2) Why has he been arrested?

3) Have they gotten hurt? - Has she hurt her hand?

4) What have you become after college?

5) Have they begun working at the new office?

6) Have you prepared the material for the class?

7) Have you put the report in the file?

8) Has he checked the temperature of the baby?

9) Why have you tied up the ropes?

10) Have we proved our research?

11) What has happened to them?

12) Who has saved money to travel with us?